RUGGEDCOM ROS
v4.3
User Guide
For RS1600, RS1600F, RS1600T
05/2018
RC1272-EN-06
Preface
Introduction 1
Using ROS 2
Getting Started 3
Device Management 4
System Administration 5
Security 6
Layer 2 7
Redundancy 8
Traffic Control and
Classification 9
Time Services 10
Network Discovery and
Management 11
IP Address Assignment 12
Troubleshooting 13
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Copyright © 2018 Siemens Canada Ltd
All rights reserved. Dissemination or reproduction of this document, or evaluation and communication of its contents, is not authorized
except where expressly permitted. Violations are liable for damages. All rights reserved, particularly for the purposes of patent application or
trademark registration.
This document contains proprietary information, which is protected by copyright. All rights are reserved. No part of this document may be
photocopied, reproduced or translated to another language without the prior written consent of Siemens Canada Ltd.
Disclaimer Of Liability
Siemens has verified the contents of this document against the hardware and/or software described. However, deviations between the product
and the documentation may exist.
Siemens shall not be liable for any errors or omissions contained herein or for consequential damages in connection with the furnishing,
performance, or use of this material.
The information given in this document is reviewed regularly and any necessary corrections will be included in subsequent editions. We
appreciate any suggested improvements. We reserve the right to make technical improvements without notice.
Registered Trademarks
RUGGEDCOM™ and ROS™ are trademarks of Siemens Canada Ltd.
Other designations in this manual might be trademarks whose use by third parties for their own purposes would infringe the rights of the
owner.
Third Party Copyrights
Siemens recognizes the following third party copyrights:
• Copyright © 2004 GoAhead Software, Inc. All Rights Reserved.
Open Source
RUGGEDCOM ROS contains Open Source Software. For license conditions, refer to the associated License Conditions document.
Security Information
Siemens provides products and solutions with industrial security functions that support the secure operation of plants, machines, equipment
and/or networks. They are important components in a holistic industrial security concept. With this in mind, Siemens' products and solutions
undergo continuous development. Siemens recommends strongly that you regularly check for product updates.
For the secure operation of Siemens products and solutions, it is necessary to take suitable preventive action (e.g. cell protection concept) and
integrate each component into a holistic, state-of-the-art industrial security concept. Third-party products that may be in use should also be
considered. For more information about industrial security, visit https://www.siemens.com/industrialsecurity.
To stay informed about product updates as they occur, sign up for a product-specific newsletter. For more information, visit https://
support.automation.siemens.com.
Warranty
Refer to the License Agreement for the applicable warranty terms and conditions, if any.
For warranty details, visit https://www.siemens.com/ruggedcom or contact a Siemens customer service representative.
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Table of Contents
Preface ........................................................................................................... xiii
Conventions ...................................................................................................................................... xiii
Related Documents ............................................................................................................................ xiv
System Requirements ......................................................................................................................... xv
Accessing Documentation ................................................................................................................... xv
Training ............................................................................................................................................. xv
Customer Support .............................................................................................................................. xvi
Chapter 1
Introduction ..................................................................................................... 1
1.1Features and Benefits ................................................................................................................... 1
1.2Security Recommendations ............................................................................................................ 3
1.3Controlled vs. Non-Controlled ........................................................................................................ 5
1.4Supported Networking Standards ................................................................................................... 6
1.5Port Numbering Scheme ............................................................................................................... 6
1.6Available Services by Port .............................................................................................................. 7
Chapter 2
Using ROS ........................................................................................................ 9
2.1Logging In .................................................................................................................................... 9
2.2Logging Out ............................................................................................................................... 10
2.3Using the Web Interface .............................................................................................................. 11
2.4Using the Console Interface ......................................................................................................... 12
2.5Using the Command Line Interface .............................................................................................. 14
2.5.1Available CLI Commands .................................................................................................. 14
2.5.2Tracing Events ................................................................................................................. 18
2.5.3Executing Commands Remotely via RSH ............................................................................ 19
2.5.4Using SQL Commands ...................................................................................................... 19
2.5.4.1Finding the Correct Table ....................................................................................... 20
2.5.4.2Retrieving Information ........................................................................................... 20
2.5.4.3Changing Values in a Table .................................................................................... 22
2.5.4.4Resetting a Table ................................................................................................... 22
2.5.4.5Using RSH and SQL ............................................................................................... 22
2.6Selecting Ports in RUGGEDCOM ROS ............................................................................................. 23
2.7Managing the Flash File System ................................................................................................... 23
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2.7.1Viewing a List of Flash Files .............................................................................................. 23
2.7.2Viewing Flash File Details ................................................................................................. 24
2.7.3Defragmenting the Flash File System ................................................................................. 24
2.8Accessing BIST Mode ................................................................................................................... 25
Chapter 3
Getting Started ............................................................................................... 27
3.1Connecting to ROS ...................................................................................................................... 27
3.1.1Default IP Address ............................................................................................................ 27
3.1.2Connecting Directly .......................................................................................................... 27
3.1.3Connecting Remotely ....................................................................................................... 28
3.2Configuring a Basic Network ........................................................................................................ 29
Chapter 4
Device Management ....................................................................................... 31
4.1Viewing Product Information ....................................................................................................... 31
4.2Viewing CPU Diagnostics ............................................................................................................. 33
4.3Restoring Factory Defaults ........................................................................................................... 34
4.4Uploading/Downloading Files ....................................................................................................... 35
4.4.1Uploading/Downloading Files Using XMODEM .................................................................... 36
4.4.2Uploading/Downloading Files Using a TFTP Client ............................................................... 36
4.4.3Uploading/Downloading Files Using a TFTP Server .............................................................. 37
4.4.4Uploading/Downloading Files Using an SFTP Server ............................................................ 38
4.5Managing Logs ........................................................................................................................... 38
4.5.1Viewing Local and System Logs ......................................................................................... 39
4.5.2Clearing Local and System Logs ........................................................................................ 39
4.5.3Configuring the Local System Log ..................................................................................... 40
4.5.4Managing Remote Logging ............................................................................................... 41
4.5.4.1Configuring the Remote Syslog Client ..................................................................... 41
4.5.4.2Viewing a List of Remote Syslog Servers .................................................................. 42
4.5.4.3Adding a Remote Syslog Server .............................................................................. 42
4.5.4.4Deleting a Remote Syslog Server ............................................................................ 43
4.6Managing Ethernet Ports ............................................................................................................. 44
4.6.1Controller Protection Through Link Fault Indication (LFI) ..................................................... 45
4.6.2Viewing the Status of Ethernet Ports ................................................................................. 46
4.6.3Viewing Statistics for All Ethernet Ports ............................................................................. 47
4.6.4Viewing Statistics for Specific Ethernet Ports ...................................................................... 48
4.6.5Clearing Statistics for Specific Ethernet Ports ...................................................................... 50
4.6.6Configuring an Ethernet Port ............................................................................................ 51
4.6.7Configuring Port Rate Limiting .......................................................................................... 53
4.6.8Configuring Port Mirroring ................................................................................................ 55
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4.6.9Configuring Link Detection ............................................................................................... 56
4.6.10Detecting Cable Faults .................................................................................................... 58
4.6.10.1Viewing Cable Diagnostics Results ........................................................................ 58
4.6.10.2Performing Cable Diagnostics ............................................................................... 60
4.6.10.3Clearing Cable Diagnostics ................................................................................... 61
4.6.10.4Determining the Estimated Distance To Fault (DTF) ................................................ 62
4.6.11Resetting Ethernet Ports ................................................................................................. 62
4.7Managing IP Interfaces ................................................................................................................ 63
4.7.1Viewing a List of IP Interfaces ........................................................................................... 63
4.7.2Adding an IP Interface ...................................................................................................... 64
4.7.3Deleting an IP Interface .................................................................................................... 66
4.8Managing IP Gateways ................................................................................................................ 67
4.8.1Viewing a List of IP Gateways ........................................................................................... 67
4.8.2Adding an IP Gateway ...................................................................................................... 68
4.8.3Deleting an IP Gateway .................................................................................................... 69
4.9Configuring IP Services ................................................................................................................ 70
4.10Managing Remote Monitoring ................................................................................................... 72
4.10.1Managing RMON History Controls ................................................................................... 73
4.10.1.1Viewing a List of RMON History Controls ............................................................... 73
4.10.1.2Adding an RMON History Control .......................................................................... 73
4.10.1.3Deleting an RMON History Control ........................................................................ 75
4.10.2Managing RMON Alarms ................................................................................................. 76
4.10.2.1Viewing a List of RMON Alarms ............................................................................ 77
4.10.2.2Adding an RMON Alarm ....................................................................................... 78
4.10.2.3Deleting an RMON Alarm ..................................................................................... 80
4.10.3Managing RMON Events ................................................................................................. 81
4.10.3.1Viewing a List of RMON Events ............................................................................. 82
4.10.3.2Adding an RMON Event ....................................................................................... 82
4.10.3.3Deleting an RMON Event ..................................................................................... 84
4.11Upgrading/Downgrading Firmware ............................................................................................. 84
4.11.1Upgrading Firmware ....................................................................................................... 85
4.11.2Downgrading Firmware .................................................................................................. 85
4.12Resetting the Device ................................................................................................................. 86
4.13Decommissioning the Device ..................................................................................................... 87
Chapter 5
System Administration .................................................................................... 89
5.1Configuring the System Information ............................................................................................. 89
5.2Customizing the Login Screen ...................................................................................................... 90
5.3Enabling/Disabling the Web Interface ........................................................................................... 90
5.4Managing Alarms ........................................................................................................................ 90
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5.4.1Viewing a List of Pre-Configured Alarms ............................................................................ 91
5.4.2Viewing and Clearing Latched Alarms ................................................................................ 92
5.4.3Configuring an Alarm ....................................................................................................... 93
5.4.4Authentication Related Security Alarms .............................................................................. 96
5.4.4.1Security Alarms for Login Authentication ................................................................ 96
5.4.4.2Security Messages for Port Authentication ............................................................... 98
5.5Managing the Configuration File .................................................................................................. 99
5.5.1Configuring Data Encryption ............................................................................................. 99
5.5.2Updating the Configuration File ...................................................................................... 101
Chapter 6
Security ......................................................................................................... 103
6.1Configuring Passwords .............................................................................................................. 103
6.2Clearing Private Data ................................................................................................................. 106
6.3Managing User Authentication ................................................................................................... 106
6.3.1Configuring User Name Extensions .................................................................................. 106
6.3.2Managing RADIUS Authentication .................................................................................... 107
6.3.2.1Configuring the RADIUS Server ............................................................................. 108
6.3.2.2Configuring the RADIUS Client on the Device ......................................................... 109
6.3.3Managing TACACS+ Authentication ................................................................................. 110
6.3.3.1Configuring TACACS+ .......................................................................................... 110
6.3.3.2Configuring User Privileges .................................................................................. 112
6.4Managing Port Security ............................................................................................................. 113
6.4.1Port Security Concepts .................................................................................................... 113
6.4.1.1Static MAC Address-Based Authentication .............................................................. 114
6.4.1.2IEEE 802.1x Authentication .................................................................................. 114
6.4.1.3IEEE 802.1X Authentication with MAC Address-Based Authentication ....................... 115
6.4.1.4Assigning VLANS with Tunnel Attributes ................................................................ 115
6.4.2Viewing a List of Authorized MAC Addresses .................................................................... 116
6.4.3Configuring Port Security ................................................................................................ 116
6.4.4Configuring IEEE 802.1X ................................................................................................. 118
6.5Managing SSH and SSL Keys and Certificates .............................................................................. 120
6.5.1SSL Certificates .............................................................................................................. 121
6.5.2SSH Host Key ................................................................................................................. 122
6.5.3Managing SSH Public Keys .............................................................................................. 122
6.5.3.1Public Key Requirements ...................................................................................... 123
6.5.3.2Adding a Public Key ............................................................................................. 124
6.5.3.3Viewing a List of Public Keys ................................................................................ 124
6.5.3.4Updating a Public Key .......................................................................................... 124
6.5.3.5Deleting a Public Key ........................................................................................... 125
6.5.4Certificate and Key Examples .......................................................................................... 125
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Chapter 7
Layer 2 .......................................................................................................... 127
7.1Managing Virtual LANs .............................................................................................................. 127
7.1.1VLAN Concepts .............................................................................................................. 128
7.1.1.1Tagged vs. Untagged Frames ............................................................................... 128
7.1.1.2Native VLAN ........................................................................................................ 128
7.1.1.3The Management VLAN ....................................................................................... 128
7.1.1.4Edge and Trunk Port Types ................................................................................... 129
7.1.1.5Ingress and Egress Rules ...................................................................................... 129
7.1.1.6Forbidden Ports List ............................................................................................. 130
7.1.1.7VLAN-Aware and VLAN-Unaware Modes ................................................................ 130
7.1.1.8GARP VLAN Registration Protocol (GVRP) ............................................................... 130
7.1.1.9VLAN Advantages ................................................................................................ 132
7.1.2Viewing a List of VLANs .................................................................................................. 133
7.1.3Enabling/Disabling VLAN-Aware Mode ............................................................................. 134
7.1.4Configuring VLANs for Specific Ethernet Ports .................................................................. 134
7.1.5Managing Static VLANs ................................................................................................... 136
7.1.5.1Viewing a List of Static VLANs .............................................................................. 136
7.1.5.2Adding a Static VLAN ........................................................................................... 137
7.1.5.3Deleting a Static VLAN ......................................................................................... 139
7.2Managing MAC Addresses ......................................................................................................... 140
7.2.1Viewing a List of MAC Addresses ..................................................................................... 140
7.2.2Configuring MAC Address Learning Options ..................................................................... 140
7.2.3Managing Static MAC Addresses ...................................................................................... 141
7.2.3.1Viewing a List of Static MAC Addresses ................................................................. 142
7.2.3.2Adding a Static MAC Address ............................................................................... 142
7.2.3.3Deleting a Static MAC Address .............................................................................. 144
7.2.4Purging All Dynamic MAC Addresses ................................................................................ 145
7.3Managing Multicast Filtering ...................................................................................................... 145
7.3.1Managing IGMP ............................................................................................................. 145
7.3.1.1IGMP Concepts .................................................................................................... 146
7.3.1.2Viewing a List of Multicast Group Memberships ..................................................... 150
7.3.1.3Viewing Forwarding Information for Multicast Groups ............................................ 150
7.3.1.4Configuring IGMP ................................................................................................ 151
7.3.2Managing GMRP ............................................................................................................ 153
7.3.2.1GMRP Concepts ................................................................................................... 153
7.3.2.2Viewing a Summary of Multicast Groups ............................................................... 156
7.3.2.3Configuring GMRP Globally .................................................................................. 156
7.3.2.4Configuring GMRP for Specific Ethernet Ports ........................................................ 157
7.3.2.5Viewing a List of Static Multicast Groups ............................................................... 159
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7.3.2.6Adding a Static Multicast Group ........................................................................... 159
7.3.2.7Deleting a Static Multicast Group .......................................................................... 160
Chapter 8
Redundancy ................................................................................................... 163
8.1Managing Spanning Tree Protocol .............................................................................................. 163
8.1.1RSTP Operation .............................................................................................................. 163
8.1.1.1RSTP States and Roles .......................................................................................... 164
8.1.1.2Edge Ports .......................................................................................................... 166
8.1.1.3Point-to-Point and Multipoint Links ....................................................................... 166
8.1.1.4Path and Port Costs ............................................................................................. 166
8.1.1.5Bridge Diameter .................................................................................................. 167
8.1.1.6eRSTP ................................................................................................................. 168
8.1.1.7Fast Root Failover ................................................................................................ 168
8.1.2RSTP Applications ........................................................................................................... 169
8.1.2.1RSTP in Structured Wiring Configurations .............................................................. 169
8.1.2.2RSTP in Ring Backbone Configurations .................................................................. 171
8.1.2.3RSTP Port Redundancy ......................................................................................... 173
8.1.3Configuring STP Globally ................................................................................................. 173
8.1.4Configuring STP for Specific Ethernet Ports ...................................................................... 175
8.1.5Configuring eRSTP .......................................................................................................... 177
8.1.6Viewing Global Statistics for STP ..................................................................................... 179
8.1.7Viewing STP Statistics for Ethernet Ports .......................................................................... 181
8.1.8Clearing Spanning Tree Protocol Statistics ........................................................................ 183
Chapter 9
Traffic Control and Classification .................................................................... 185
9.1Managing Classes of Service ...................................................................................................... 185
9.1.1Configuring Classes of Service Globally ............................................................................ 186
9.1.2Configuring Classes of Service for Specific Ethernet Ports .................................................. 187
9.1.3Configuring Priority to CoS Mapping ................................................................................ 188
9.1.4Configuring CoS to Priority Mapping ................................................................................ 189
9.1.5Configuring DSCP to CoS Mapping ................................................................................... 191
Chapter 10
Time Services ................................................................................................ 193
10.1Configuring the Time and Date ................................................................................................ 193
10.2Managing NTP ........................................................................................................................ 194
10.2.1Enabling/Disabling NTP Service ...................................................................................... 194
10.2.2Configuring NTP Servers ............................................................................................... 195
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Chapter 11
Network Discovery and Management ............................................................. 197
11.1Enabling/Disabling RCDP .......................................................................................................... 197
11.2Managing LLDP ....................................................................................................................... 199
11.2.1Configuring LLDP Globally ............................................................................................. 199
11.2.2Configuring LLDP for an Ethernet Port ........................................................................... 201
11.2.3Viewing Global Statistics and Advertised System Information ........................................... 202
11.2.4Viewing Statistics for LLDP Neighbors ............................................................................ 203
11.2.5Viewing Statistics for LLDP Ports .................................................................................... 203
11.3Managing SNMP ..................................................................................................................... 204
11.3.1SNMP Management Interface Base (MIB) Support ........................................................... 205
11.3.1.1Supported Standard MIBs ................................................................................... 205
11.3.1.2Supported Proprietary RUGGEDCOM MIBs ............................................................ 206
11.3.1.3Supported Agent Capabilities .............................................................................. 207
11.3.2SNMP Traps ................................................................................................................. 208
11.3.3Managing SNMP Users .................................................................................................. 210
11.3.3.1Viewing a List of SNMP Users ............................................................................. 210
11.3.3.2Adding an SNMP User ........................................................................................ 210
11.3.3.3Deleting an SNMP User ...................................................................................... 213
11.3.4Managing Security-to-Group Mapping ............................................................................ 214
11.3.4.1Viewing a List of Security-to-Group Maps ............................................................ 214
11.3.4.2Adding a Security-to-Group Map ......................................................................... 214
11.3.4.3Deleting a Security-to-Group Map ....................................................................... 216
11.3.5Managing SNMP Groups ............................................................................................... 216
11.3.5.1Viewing a List of SNMP Groups ........................................................................... 217
11.3.5.2Adding an SNMP Group ..................................................................................... 217
11.3.5.3Deleting an SNMP Group ................................................................................... 219
11.4ModBus Management Support ................................................................................................. 219
11.4.1ModBus Function Codes ............................................................................................... 220
11.4.2ModBus Memory Map ................................................................................................... 221
11.4.3Modbus Memory Formats ............................................................................................. 225
11.4.3.1Text .................................................................................................................. 225
11.4.3.2Cmd ................................................................................................................. 226
11.4.3.3Uint16 .............................................................................................................. 226
11.4.3.4Uint32 .............................................................................................................. 226
11.4.3.5PortCmd ........................................................................................................... 226
11.4.3.6Alarm ............................................................................................................... 227
11.4.3.7PSStatusCmd ..................................................................................................... 228
11.4.3.8TruthValues ....................................................................................................... 228
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Chapter 12
IP Address Assignment .................................................................................. 231
12.1Managing DHCP Relay Agent ................................................................................................... 231
12.1.1Configuring the DHCP Relay Agent ................................................................................ 231
12.1.2Enabling DHCP Relay Agent Information (Option 82) for Specific Ports .............................. 232
Chapter 13
Troubleshooting ............................................................................................ 235
13.1General .................................................................................................................................. 235
13.2Ethernet Ports ......................................................................................................................... 236
13.3Spanning Tree ........................................................................................................................ 236
13.4VLANs .................................................................................................................................... 238
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Preface
Conventions xiii
Preface
This guide describes v4.3 of ROS (Rugged Operating System) running on the RUGGEDCOM RS1600/RS1600F/
RS1600T. It contains instructions and guidelines on how to use the software, as well as some general theory.
It is intended for use by network technical support personnel who are familiar with the operation of networks. It is
also recommended for use by network and system planners, system programmers, and line technicians.
IMPORTANT!
Some of the parameters and options described may not be available depending on variations in the
device hardware. While every attempt is made to accurately describe the specific parameters and
options available, this Guide should be used as a companion to the Help text included in the software.
CONTENTS
•“Conventions”
•“Related Documents”
•“System Requirements”
•“Accessing Documentation”
•“Training”
•“Customer Support”
Conventions
This User Guide uses the following conventions to present information clearly and effectively.
Alerts
The following types of alerts are used when necessary to highlight important information.
DANGER!
DANGER alerts describe imminently hazardous situations that, if not avoided, will result in death or
serious injury.
WARNING!
WARNING alerts describe hazardous situations that, if not avoided, may result in serious injury and/or
equipment damage.
CAUTION!
CAUTION alerts describe hazardous situations that, if not avoided, may result in equipment damage.
Preface
RUGGEDCOM ROS
User Guide
xiv Related Documents
IMPORTANT!
IMPORTANT alerts provide important information that should be known before performing a procedure
or step, or using a feature.
NOTE
NOTE alerts provide additional information, such as facts, tips and details.
CLI Command Syntax
The syntax of commands used in a Command Line Interface (CLI) is described according to the following
conventions:
Example Description
command Commands are in bold.
command parameter Parameters are in plain text.
command parameter1 parameter2 Parameters are listed in the order they must be entered.
command parameter1 parameter2 Parameters in italics must be replaced with a user-defined value.
command [ parameter1 | parameter2 ] Alternative parameters are separated by a vertical bar (|).
Square brackets indicate a required choice between two or more
parameters.
command { parameter3 | parameter4 } Curly brackets indicate an optional parameter(s).
command parameter1 parameter2 { parameter3 |
parameter4 }
All commands and parameters are presented in the order they must
be entered.
Related Documents
Product Notes
Product notes specific to each release of RUGGEDCOM ROS are available on the Siemens' Industry Online Support
portal [https://support.industry.siemens.com].
User/Reference Guides
Document Title Link
RUGGEDCOM NMS v2.1 User Guide for Windows https://support.industry.siemens.com/cs/ww/en/view/109737564
RUGGEDCOM NMS v2.1 User Guide for Linux https://support.industry.siemens.com/cs/ww/en/view/109737563
RUGGEDCOM DIRECTOR v1.4 User Guide https://support.industry.siemens.com/cs/ww/en/view/97691648
RUGGEDCOM EXPLORER v1.5 User Guide https://support.industry.siemens.com/cs/ww/en/view/109480804
RUGGEDCOM PING v1.2 User Guide https://support.industry.siemens.com/cs/ww/en/view/97674073
RUGGEDCOM ROS
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Preface
System Requirements xv
FAQs
Document Title Link
How Do You Configure the SMP Function in a RUGGEDCOM Switch
with RUGGEDCOM ROS?
https://support.industry.siemens.com/cs/ww/en/view/109474615
How to Secure RUGGEDCOM ROS Devices Before and After Field
Deployment
https://support.industry.siemens.com/cs/ww/en/view/99858806
How to Implement Robust Ring Networks Using RSTP and eRSTP https://support.industry.siemens.com/cs/ww/en/view/109738240
How to Implement Secure, Unattended Logging in ROS https://support.industry.siemens.com/cs/ww/en/view/109756843
Installation Guides
Document Title Link
RUGGEDCOM RS1600 Installation Guide https://support.industry.siemens.com/cs/ww/en/view/88895186
RUGGEDCOM RS1600T Installation Guide https://support.industry.siemens.com/cs/ww/en/view/88894923
System Requirements
Each workstation used to connect to the RUGGEDCOM ROS interface must meet the following system
requirements:
• Must have one of the following Web browsers installed:
▫ Microsoft Internet Explorer 8.0 or higher
▫ Mozilla Firefox
▫ Google Chrome
▫ Iceweasel/IceCat (Linux Only)
• Must have a working Ethernet interface compatible with at least one of the port types on the RUGGEDCOM
device
• The ability to configure an IP address and netmask on the computer’s Ethernet interface
Accessing Documentation
The latest user documentation for RUGGEDCOM ROS v4.3 is available online at
https://www.siemens.com/ruggedcom. To request or inquire about a user document, contact Siemens Customer
Support.
Training
Siemens offers a wide range of educational services ranging from in-house training of standard courses on
networking, Ethernet switches and routers, to on-site customized courses tailored to the customer's needs,
experience and application.
Preface
RUGGEDCOM ROS
User Guide
xvi Customer Support
Siemens' Educational Services team thrives on providing our customers with the essential practical skills to make
sure users have the right knowledge and expertise to understand the various technologies associated with critical
communications network infrastructure technologies.
Siemens' unique mix of IT/Telecommunications expertise combined with domain knowledge in the utility,
transportation and industrial markets, allows Siemens to provide training specific to the customer's application.
For more information about training services and course availability, visit https://www.siemens.com/ruggedcom or
contact a Siemens Sales representative.
Customer Support
Customer support is available 24 hours, 7 days a week for all Siemens customers. For technical support or general
information, contact Siemens Customer Support through any of the following methods:
Online
Visit http://www.siemens.com/automation/support-request to submit a Support Request (SR) or check
on the status of an existing SR.
Telephone
Call a local hotline center to submit a Support Request (SR). To locate a local hotline center, visit http://
www.automation.siemens.com/mcms/aspa-db/en/automation-technology/Pages/default.aspx.
Mobile App
Install the Industry Online Support app by Siemens AG on any Android, Apple iOS or Windows mobile
device and be able to:
• Access Siemens' extensive library of support documentation, including FAQs and manuals
• Submit SRs or check on the status of an existing SR
• Contact a local Siemens representative from Sales, Technical Support, Training, etc.
• Ask questions or share knowledge with fellow Siemens customers and the support community
RUGGEDCOM ROS
User Guide
Chapter 1
Introduction
Features and Benefits 1
Introduction
Welcome to the RUGGEDCOM ROS v4.3 Software User Guide for the RUGGEDCOM RS1600/RS1600F/RS1600T
devices. This Guide describes the wide array of carrier grade features made available by RUGGEDCOM ROS
(Rugged Operating System).
This chapter provides a basic overview of the RUGGEDCOM ROS software.
CONTENTS
•Section1.1, “Features and Benefits”
•Section1.2, “Security Recommendations”
•Section1.3, “Controlled vs. Non-Controlled”
•Section1.4, “Supported Networking Standards”
•Section1.5, “Port Numbering Scheme”
•Section1.6, “Available Services by Port”
Section1.1
Features and Benefits
The following describes the many features available in RUGGEDCOM ROS and their benefits:
•Cyber Security Features
Cyber security is an urgent issue in many industries where advanced automation and communications networks
play a crucial role in mission critical applications and where high reliability is of paramount importance. Key
RUGGEDCOM ROS features that address security issues at the local area network level include:
Passwords Multi-level user passwords secures against unauthorized configuration
SSH/SSL Extends capability of password protection to add encryption of passwords and data as they
cross the network
Enable/Disable Ports Capability to disable ports so that traffic cannot pass
802.1Q VLAN Provides the ability to logically segregate traffic between predefined ports on switches
SNMPv3 Encrypted authentication and access security
HTTPS For secure access to the Web interface
•Enhanced Rapid Spanning Tree Protocol (eRSTP)™
Siemens's eRSTP allows the creation of fault-tolerant ring and mesh Ethernet networks that incorporate
redundant links that are pruned to prevent loops. eRSTP implements both STP and RSTP to promote
interoperability with commercial switches, unlike other proprietary ring solutions. The fast root failover feature
of eRSTP provides quick network convergence in case of an RSTP root bridge failure in a mesh topology.
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User Guide
2 Features and Benefits
•Quality of Service (IEEE 802.1p)
Some networking applications such as real-time control or VoIP (Voice over IP) require predictable arrival
times for Ethernet frames. Switches can introduce latency in times of heavy network traffic due to the internal
queues that buffer frames and then transmit on a first come first serve basis. RUGGEDCOM ROS supports Class
of Service, which allows time critical traffic to jump to the front of the queue, thus minimizing latency and
reducing jitter to allow such demanding applications to operate correctly. RUGGEDCOM ROS allows priority
classification by port, tags, MAC address, and IP Type of Service (ToS). A configurable weighted fair queuing
algorithm controls how frames are emptied from the queues.
•VLAN (IEEE 802.1Q)
Virtual Local Area Networks (VLAN) allow the segregation of a physical network into separate logical networks
with independent broadcast domains. A measure of security is provided since hosts can only access other hosts
on the same VLAN and traffic storms are isolated. RUGGEDCOM ROS supports 802.1Q tagged Ethernet frames
and VLAN trunks. Port based classification allows legacy devices to be assigned to the correct VLAN. GVRP
support is also provided to simplify the configuration of the switches on the VLAN.
•Simple Network Management Protocol (SNMP)
SNMP provides a standardized method, for network management stations, to interrogate devices from different
vendors. SNMP versions supported by RUGGEDCOM ROS are v1, v2c and v3. SNMPv3 in particular provides
security features (such as authentication, privacy, and access control) not present in earlier SNMP versions.
RUGGEDCOM ROS also supports numerous standard MIBs (Management Information Base) allowing for easy
integration with any Network Management System (NMS). A feature of SNMP is the ability to generate traps
upon system events. RUGGEDCOM NMS, the Siemens management solution, can record traps from multiple
devices providing a powerful network troubleshooting tool. It also provides a graphical visualization of the
network and is fully integrated with all Siemens products.
•Remote Monitoring and Configuration with RUGGEDCOM NMS
RUGGEDCOM NMS (RNMS) is Siemens's Network Management System software for the discovery, monitoring
and management of RUGGEDCOM products and other IP enabled devices on a network. This highly
configurable, full-featured product records and reports on the availability and performance of network
components and services. Device, network and service failures are quickly detected and reported to reduce
downtime.
RNMS is especially suited for remotely monitoring and configuring RUGGEDCOM routers, switches, serial servers
and WiMAX wireless network equipment. For more information, contact a Siemens Sales representative.
•NTP (Network Time Protocol)
NTP automatically synchronizes the internal clock of all RUGGEDCOM ROS devices on the network. This allows
for correlation of time stamped events for troubleshooting.
•Port Rate Limiting
RUGGEDCOM ROS supports configurable rate limiting per port to limit unicast and multicast traffic. This can
be essential to managing precious network bandwidth for service providers. It also provides edge security for
Denial of Service (DoS) attacks.
•Broadcast Storm Filtering
Broadcast storms wreak havoc on a network and can cause attached devices to malfunction. This could be
disastrous on a network with mission critical equipment. RUGGEDCOM ROS limits this by filtering broadcast
frames with a user-defined threshold.
•Port Mirroring
RUGGEDCOM ROS can be configured to duplicate all traffic on one port to a designated mirror port. When
combined with a network analyzer, this can be a powerful troubleshooting tool.
•Port Configuration and Status
RUGGEDCOM ROS allows individual ports to be hard configured for speed, duplex, auto-negotiation, flow
control and more. This allows proper connection with devices that do not negotiate or have unusual settings.
Detailed status of ports with alarm and SNMP trap on link problems aid greatly in system troubleshooting.
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Introduction
Security Recommendations 3
•Port Statistics and RMON (Remote Monitoring)
RUGGEDCOM ROS provides continuously updating statistics per port that provide both ingress and egress packet
and byte counters, as well as detailed error figures.
Also provided is full support for RMON statistics. RMON allows for very sophisticated data collection, analysis
and detection of traffic patterns.
•Multicast Filtering
RUGGEDCOM ROS supports static multicast groups and the ability to join or leave multicast groups dynamically
using IGMP (Internet Group Management Protocol) or GMRP (GARP Multicast Registration Protocol).
•Event Logging and Alarms
RUGGEDCOM ROS records all significant events to a non-volatile system log allowing forensic troubleshooting.
Events include link failure and recovery, unauthorized access, broadcast storm detection, and self-test
diagnostics among others. Alarms provide a snapshot of recent events that have yet to be acknowledged by
the network administrator. An external hardware relay is de-energized during the presence of critical alarms,
allowing an external controller to react if desired.
•HTML Web Browser User Interface
RUGGEDCOM ROS provides a simple, intuitive user interface for configuration and monitoring via a standard
graphical Web browser or via a standard telcom user interface. All system parameters include detailed online
help to facilitate setup and configuration. RUGGEDCOM ROS presents a common look and feel and standardized
configuration process, allowing easy migration to other managed RUGGEDCOM products.
•Brute Force Attack Prevention
Protection against Brute Force Attacks (BFAs) is standard in RUGGEDCOM ROS. If an external host fails to log in
to the Terminal or Web interfaces after a fixed number of attempts, the service will be blocked for one hour.
Section1.2
Security Recommendations
To prevent unauthorized access to the device, note the following security recommendations:
Authentication
• Replace the default passwords for all user accounts and processes (where applicable) before the device is
deployed.
• Use strong passwords with high randomization (i.e. entropy), without repetition of characters. Avoid weak
passwords such as password1, 123456789, abcdefgh, and any dictionary words or proper names in any
combination. For more information about creating strong passwords, refer to the password requirements in
Section6.1, “Configuring Passwords”.
• Make sure passwords are protected and not shared with unauthorized personnel.
• Passwords should not be re-used across different user names and systems, or after they expire.
• If RADIUS authentication is done remotely, make sure all communications are within the security perimeter or
on a secure channel.
• Generate and provision a custom SSL certificate and SSH host key pair before commissioning the device. For
more information, refer to Section6.5, “Managing SSH and SSL Keys and Certificates”.
• Use SSH public key authentication. For more information, refer to Section6.5, “Managing SSH and SSL Keys and
Certificates”.
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4 Security Recommendations
Physical/Remote Access
• Do not connect the device to the Internet. Deploy the device only within a secure network perimeter.
• Restrict physical access to the device to only authorized personnel. A person with malicious intent could extract
critical information, such as certificates, keys, etc. (user passwords are protected by hash codes), or reprogram
the device.
• Control access to the serial console to the same degree as any physical access to the device. Access to the serial
console allows for potential access to the RUGGEDCOM ROS boot loader, which includes tools that may be used
to gain complete access to the device.
• Only enable services that will be used on the device, including physical ports. Unused physical ports could
potentially be used to gain access to the network behind the device.
• If SNMP is enabled, limit the number of IP addresses that can connect to the device and change the community
names. Also configure SNMP to raise a trap upon authentication failures. For more information, refer to
Section11.3, “Managing SNMP”.
• Avoid using insecure services such as Telnet and TFTP, or disable them completely if possible. These services are
available for historical reasons and are disabled by default.
• Disable RCDP if it is not intended for use.
• Limit the number of simultaneous Web Server, Telnet and SSH sessions allowed.
• Configure remote system logging to forward all logs to a central location. For more information, refer to
Section4.5, “Managing Logs”.
• Configuration files are provided in the CSV (comma separated values) format for ease of use. Make sure
configuration files are properly protected when they exist outside of the device. For instance, encrypt the files,
store them in a secure place, and do not transfer them via insecure communication channels.
• Management of the configuration file, certificates and keys is the responsibility of the device owner.
Consider using RSA key sizes of at least 2048 bits in length and certificates signed with SHA256 for increased
cryptographic strength. Before returning the device to Siemens for repair, make sure encryption is disabled (to
create a cleartext version of the configuration file) and replace the current certificates and keys with temporary
throwaway certificates and keys that can be destroyed upon the device's return.
• Be aware of any non-secure protocols enabled on the device. While some protocols such as HTTPS and SSH are
secure, others such as Telnet, RSH and HTTP were not designed for this purpose. Appropriate safeguards against
non-secure protocols should be taken to prevent unauthorized access to the device/network.
• Configure port security features on access ports to prevent an unauthorized third-party from physically
connecting to the device. For more information, refer to Section6.4, “Managing Port Security”.
Hardware/Software
• Make sure the latest firmware version is installed, including all security-related patches. For the latest
information on security patches for Siemens products, visit the Industrial Security website [https://
www.siemens.com/global/en/home/company/topic-areas/future-of-manufacturing/industrial-security.html]
or the ProductCERT Security Advisories website [http://www.siemens.com/innovation/en/technology-focus/
siemens-cert/cert-security-advisories.htm]. Updates to Siemens Product Security Advisories can be obtained
by subscribing to the RSS feed on the Siemens ProductCERT Security Advisories website, or by following
@ProductCert on Twitter.
• Enable BPDU Guard on ports where RSTP BPDUs are not expected.
• Use the latest Web browser version compatible with RUGGEDCOM ROS to make sure the most secure Transport
Layer Security (TLS) versions and ciphers available are employed.
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Controlled vs. Non-Controlled 5
• Modbus can be deactivated if not required by the user. If Modbus activation is required, then it is recommended
to follow the security recommendations outlined in this User Guide and to configure the environment according
to defense-in-depth best practices.
• Prevent access to external, untrusted Web pages while accessing the device via a Web browser. This can assist in
preventing potential security threats, such as session hijacking.
• For optimal security, use SNMPv3 whenever possible. Use strong authentication keys and private keys without
repetitive strings ( e.g. abc or abcabc) with this feature. For more information about creating strong passwords,
refer to the password requirements in Section6.1, “Configuring Passwords”.
• Unless required for a particular network topology, the IP Forward setting should be set to Disabled to prevent
the routing of packets.
NOTE
For configuration compatibility reasons, the configured setting will not change when upgrading from
RUGGEDCOM ROS versions older than v4.2.0 to v4.2.0 and newer. This setting is always enabled and
cannot be configured on versions before v4.2.0. For new units with firmware v4.2.0 or higher, this
setting is configurable and disabled by default.
Policy
• Periodically audit the device to make sure it complies with these recommendations and/or any internal security
policies.
• Review the user documentation for other Siemens products used in coordination with device for further security
recommendations.
Section1.3
Controlled vs. Non-Controlled
RUGGEDCOM ROS devices are available as either Controlled (C) or Non-Controlled (NC).
•Controlled switches feature a variety of encryption capabilities.
•Non-controlled switches have limited encryption capabilities.
To determine if a device is classified as controlled or non-controlled, navigate to Diagnostics» View Product
Information. The Classification parameter on the Product Information form indicates if the device is
controlled or non-controlled.
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6 Supported Networking Standards
9
5
4
3
2
1
6
7
8
Figure1:Product Information Form (Example)
1.MAC Address Box 2.Order Code Box 3.Classification Box 4.Serial Number Box 5.Boot Version Box 6.Main Version Box
7.Required Boot Box 8.Hardware ID Box 9.Reload Button
A non-controlled device can be converted to a controlled device by uploading the applicable controlled firmware
version. For more information about uploading firmware to the device, refer to Section4.11.1, “Upgrading
Firmware”.
Section1.4
Supported Networking Standards
The following networking standards are supported by RUGGEDCOM ROS:
Standard 10 Mbps Ports 100 Mbps Ports 1000 Mbps Ports Notes
IEEE 802.3x ü ü ü Full Duplex Operation
IEEE 802.3z ü1000Base-LX
IEEE 802.3ab ü1000Base-Tx
IEEE 802.1D ü ü ü MAC Bridges
IEEE 802.1Q ü ü ü VLAN (Virtual LAN)
IEEE 802.1p ü ü ü Priority Levels
Section1.5
Port Numbering Scheme
For quick identification, each port on a RUGGEDCOM RS1600/RS1600F/RS1600T device is assigned a number. All
port numbers are silk-screened on the device.
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Introduction
Available Services by Port 7
PORT9
RX
PORT1 PORT5PORT3PORT2 PORT4
TX
PORT7PORT6 PORT8 PORT13PORT11PORT10 PORT12
RESET PORT15
PORT14
PS2
PS1
PORT16
RX TX RX TX RX TX RX TX RX TX RX TX
RX TX RX TX RX TX RX TX RX TX
RUGGE
DCOM RS1600
Figure2:RUGGEDCOM RS1600/RS1600F/RS1600T Port Numbering (Typical)
Use these numbers to configure applicable features on select ports.
Section1.6
Available Services by Port
The following table lists the services available under RUGGEDCOM ROS. This table includes the following
information:
•Services
The service supported by the device.
•Port Number
The port number associated with the service.
•Port Open
The port state, whether it is always open and cannot be closed, or open only, but can be configured.
NOTE
In certain cases, the service might be disabled, but the port can still be open (e.g. TFTP).
•Port Default
The default state of the port (i.e. open or closed).
•Access Authorized
Denotes whether the ports/services are authenticated during access.
Services Port Number Service Enabled/
Disabled Access Authorized Note
Telnet TCP/23 Disabled Yes Only available through
management interfaces.
HTTP TCP/80 Enabled, redirects to 443 — Only redirects to 443 on
Controlled versions
HTTPS TCP/443 Enabled (configurable) Yes Only applicable to
Controlled versions
RSH TCP/514 Disabled (configurable) Yes Only available through
management interfaces.
TFTP UDP/69 Disabled (configurable) No Only available through
management interfaces.
SFTP TCP/22 Enabled Yes Only available through
management interfaces.
SNMP UDP/161 Disabled (configurable) Yes Only available through
management interfaces.
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8 Available Services by Port
Services Port Number Service Enabled/
Disabled Access Authorized Note
SNTP UDP/123 Enabled (configurable) No Only available through
management interfaces.
SSH TCP/22 Enabled Yes Only available through
management interfaces.
ICMP — Enabled No
TACACS+ TCP/49 (configurable) Disabled (configurable) Yes
RADIUS UDP/1812 to send
(configurable), opens
random port to listen to
Disabled (configurable) Yes Only available through
management interfaces.
Remote Syslog UDP/514 (configurable) Disabled (configurable) No Only available through
management interfaces.
TCP Modbus (Server) TCP/502 Disabled (configurable) No Only available through
management interfaces.
TCP Modbus (Switch) TCP/502 Disabled (configurable) No
DHCP, DHCP Agent UDP/67, 68 sending msg
if enabled - if received,
always come to CPU,
dropped if service not
configured
Disabled (configurable) No
RCDP — Enabled (configurable) Yes
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Chapter 2
Using ROS
Logging In 9
Using ROS
This chapter describes how to use RUGGEDCOM ROS.
CONTENTS
•Section2.1, “Logging In”
•Section2.2, “Logging Out”
•Section2.3, “Using the Web Interface”
•Section2.4, “Using the Console Interface”
•Section2.5, “Using the Command Line Interface”
•Section2.6, “Selecting Ports in RUGGEDCOM ROS”
•Section2.7, “Managing the Flash File System”
•Section2.8, “Accessing BIST Mode”
Section2.1
Logging In
To log in to the device, do the following:
1. Connect to the device either directly or through a Web browser. For more information about how to connect
to the device, refer to Section3.1, “Connecting to ROS”.
Once the connection is established, the login form appears.
1
2
Figure3:SSH Login Screen (Console Interface)
1.User Name Box 2.Password Box
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10 Logging Out
1
3
2
Figure4:Login Screen (Web Interface)
1.Username Box 2.Password Box 3.Submit Button
NOTE
The following default user names and passwords are set on the device for each user type:
Guest
User Name: guest
Password: guest
Operator
User Name: operator
Password: operator
Admin
User Name: admin
Password: admin
CAUTION!
To prevent unauthorized access to the device, make sure to change the default guest, operator,
and admin passwords before commissioning the device.
For more information about changing passwords, refer to Section6.1, “Configuring Passwords”.
2. In the User Name field, type the user name for an account setup on the device.
3. In the Password field, typ the password for the account.
4. Click Enter or click Submit (Web interface only).
Section2.2
Logging Out
To log out of the device, navigate to the main screen and do the following:
• To log out of the Console or secure shell interfaces, press CTRL + X.
• To log out of the Web interface, click Logout.
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Using ROS
Using the Web Interface 11
1
Figure5:Web Interface (Example)
1.Logout
NOTE
If any pending configuration changes have not been committed, RUGGEDCOM ROS will request
confirmation before discarding the changes and logging out of the device.
Section2.3
Using the Web Interface
The Web interface is a Web-based Graphical User Interface (GUI) for displaying important information and controls
in a Web browser. The interface is divided into three frames: the banner, the menu and the main frame.
2
1
3
Figure6:Web Interface Layout (Example)
1.Top Frame 2.Side Frame 3.Main Frame
Frame Description
Top The top frame displays the system name for the device.
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12 Using the Console Interface
Frame Description
Side The side frame contains a logout option and a collapsible list of links that open various
screens in the main frame. For information about logging out of RUGGEDCOM ROS, refer to
Section2.2, “Logging Out”.
Main The main frame displays the parameters and/or data related to the selected feature.
Each screen consists of a title, the current user's access level, parameters and/or data (in form or table format),
and controls (e.g. add, delete, refresh, etc.). The title provides access to context-specific Help for the screen that
provides important information about the available parameters and/or data. Click on the link to open the Help
information in a new window.
When an alarm is generated, an alarm notification replaces the current user's access level on each screen until
the alarm is cleared. The notification indicates how many alarms are currently active. For more information about
alarms, refer to Section5.4, “Managing Alarms”.
3
1
2
4
Figure7:Elements of a Typical Screen (Example)
1.Title 2.Parameters and/or Data 3.Access Level or Alarm Notification 4.Controls
NOTE
If desired, the web interface can be disabled. For more information, refer to Section5.3, “Enabling/
Disabling the Web Interface”.
Section2.4
Using the Console Interface
The Console interface is a Graphical User Interface (GUI) organized as a series of menus. It is primarily accessible
through a serial console connection, but can also be accessed through IP services, such as a Telnet, RSH (Remote
Shell), SSH (Secure Shell) session, or SSH remote command execution.
NOTE
IP services can be restricted to control access to the device. For more information, refer to Section4.9,
“Configuring IP Services”.
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Using the Console Interface 13
Each screen consists of a system identifier, the name of the current menu, and a command bar. Alarms are also
indicated on each screen in the upper right corner.
5
4
1
2
3
Figure8:Console Interface (Example)
1.System Identification 2.Menus 3.Command Bar 4.Menu Name 5.Alarms Indicator
NOTE
The system identifier is user configurable. For more information about setting the system name, refer
to Section5.1, “Configuring the System Information”.
Navigating the Interface
Use the following controls to navigate between screens in the Console interface:
Enter Select a menu item and press this Enter to enter the sub-menu or screen beneath.
Esc Press Esc to return to the previous screen.
Configuring Parameters
Use the following controls to select and configure parameters in the Console interface:
Up/Down Arrow Keys Use the up and down arrow keys to select parameters.
Enter Select a parameter and press Enter to start editing a parameter. Press Enter again to commit the change.
Esc When editing a parameter, press Esc to abort all changes.
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14 Using the Command Line Interface
Commands
The command bar lists the various commands that can be issued in the Console interface. Some commands are
specific to select screens. The standard commands include the following:
Ctrl + A Commits configuration changes made on the current screen.
NOTE
Before exiting a screen, RUGGEDCOM ROS will automatically prompt the user to save any changes
that have not been committed.
Ctrl + I Inserts a new record.
Ctrl + L Deletes a record.
Ctrl + S Opens the CLI interface.
Ctrl + X Terminates the current session. This command is only available from the main menu.
Ctrl + Z Displays important information about the current screen or selected parameter.
Section2.5
Using the Command Line Interface
The Command Line Interface (CLI) offers a series of powerful commands for updating RUGGEDCOM ROS,
generating certificates/keys, tracing events, troubleshooting and much more. It is accessed via the Console
interface by pressing Ctrl-S.
CONTENTS
•Section2.5.1, “Available CLI Commands”
•Section2.5.2, “Tracing Events”
•Section2.5.3, “Executing Commands Remotely via RSH”
•Section2.5.4, “Using SQL Commands”
Section2.5.1
Available CLI Commands
The following commands are available at the command line:
Command Description Authorized Users
alarms all Displays a list of available alarms.
Optional and/or required parameters include:
•all displays all available alarms
Guest, Operator, Admin
arp Displays the IP to MAC address resolution table. Admin
clearalarms Clears all alarms. Operator, Admin
clearethstats [ all |
port ]
Clears Ethernet statistics for one or more ports.
Optional and/or required parameters include:
•all clears statistics for all ports
Operator, Admin
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Available CLI Commands 15
Command Description Authorized Users
•portis a comma separated list of port numbers (e.g. 1,3-5,7)
clearlogs Clears the system and crash logs. Admin
clrcblstats [ all | port
]
Clears cable diagnostics statistics for one or more ports.
Optional and/or required parameters include:
•all clears statistics for all ports
•portis a comma separated list of port numbers (e.g. 1,3-5,7)
Admin
clrstpstats Clears all spanning tree statistics. Operator, Admin
cls Clears the screen. Guest, Operator, Admin
dir Prints the directory listing. Guest, Operator, Admin
exit Terminates the session. Guest, Operator, Admin
factory Enables factory mode, which includes several factory-level
commands used for testing and troubleshooting. Only available to
admin users.
CAUTION!
Misuse of the factory commands may corrupt the
operational state of device and/or may permanently
damage the ability to recover the device without
manufacturer intervention.
Admin
flashfiles { info
filename | defrag }
A set of diagnostic commands to display information about the Flash
filesystem and to defragment Flash memory.
Optional and/or required parameters include:
•info filename displays information about the specified file in
the Flash file system
•defrag defragments files in the Flash file system
For more information about the flashfiles command, refer to
Section2.7, “Managing the Flash File System”.
Admin
flashleds timeout Flashes the LED indicators on the device for a specified number of
seconds.
Optional and/or required parameters include:
•timeoutis the number of seconds to flash the LED indicators. To
stop the LEDs from flashing, set the timeout period to 0 (zero).
Admin
fpgacmd Provides access to the FPGA management tool for troubleshooting
time synchronization.
Admin
help command Displays a brief description of the specified command. If no
command is specified, it displays a list of all available commands,
including a description for each.
Optional and/or required parameters include:
•commandis the command name.
Guest, Operator, Admin
ipconfig Displays the current IP address, subnet mask and default gateway.
This command provides the only way of determining these values
when DHCP is used.
Guest, Operator, Admin
loaddflts Loads the factory default configuration. Admin
logout Logs out of the shell. Guest, Operator, Admin
logs Displays syslog entries in CLI shell. Admin
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16 Available CLI Commands
Command Description Authorized Users
passwd user_name
new_password
Changes the selected user's password.
Optional and/or required parameters include:
•user_name is an existing user_name in RUGGEDCOM ROS.
•new_password is the new password that will replace the existing
password of the selected user.
This command is unavailable in Tenet sessions.
Admin
ping address { count |
timeout }
Sends an ICMP echo request to a remotely connected device.
For each reply received, the round trip time is displayed. Use this
command to verify connectivity to the next connected device.
It is a useful tool for testing commissioned links. This command
also includes the ability to send a specific number of pings with a
specified time for which to wait for a response.
Optional and/or required parameters include:
•addressis the target IP address.
•countis the number of echo requests to send. The default is 4.
•timeoutis the time in milliseconds to wait for each reply. The
range is 2 to 5000 seconds. The default is 300 milliseconds.
NOTE
The device to be pinged must support ICMP echo.
Upon commencing the ping, an ARP request for the
MAC address of the device is issued. If the device to
be pinged is not on the same network as the device
pinging the other device, the default gateway must be
programmed.
Guest, Operator, Admin
purgemac Purges the MAC Address table. Operator, Admin
random Display seeds or random numbers. Admin
reset Perform a hard reset of the switch. Operator, Admin
resetport { all | ports
}
Resets one or more Ethernet ports, which may be useful for forcing
re-negotiation of speed and duplex, or in situations where the link
partner has latched into an inappropriate state.
Optional and/or required parameters include:
•all resets all ports
•portsis a comma separated list of port numbers (e.g. 1,3-5,7)
Operator, Admin
rmon Displays the names of all RMON alarm eligible objects. Guest, Operator, Admin
route Displays the gateway configuration. Guest, Operator, Admin
sfp port { base | alarms
| diag | calibr | thr
| all | no parameter
specified }
Displays SFP (Small Form Factor Pluggable) device information and
diagnostics. If optional or required parameters are not used, this
command displays the base and extended information.
Optional and/or required parameters include:
•portis the port number for which the data are required
•base displays the base information
•alarms displays alarms and warning flags
•diag displays measured data
•calibr displays calibration data for external calibration
•thr displays thresholds data
•all displays all diagnostic data
Admin
sql { default | delete
| help | info | insert |
save | select | update }
Provides an SQL-like interface for manipulating all system
configuration and status parameters. All commands, clauses, table,
and column names are case insensitive.
Admin
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Available CLI Commands 17
Command Description Authorized Users
Optional and/or required parameters include:
•default sets all records in a table(s) to factory defaults
•delete allows for records to be deleted from a table
•help provides a brief description for any SQL command or clause
•info displays a variety of information about the tables in the
database
•insert enables new records to be inserted into a table
•save saves the database to non-volatile memory storage
•select queries the dtabase and displays selected records
•update enable existing records in a table to be updated
For more information about the sql command, refer to
Section2.5.4, “Using SQL Commands”.
sshkeygen [ rsa | dsa ]
[ 1024 | 2048 | 3072 ] N
Generates new RSA or DSA keys in ssh.keys. Keys can be either
1024, 2048 or 3072 bits long.
Admin
sshpubkey List, remove and update key entries in sshpub.keys file. Admin
sslkeygen keytype NGenerates a new SSL certificate in ssl.crt.
Optional and/or required parameters include:
•keytypeis the type of key, either rsa or ecc
•Nis the number of bits in length. For RSA keys, the allowable sizes
are 1024, 2048 or 3072. For ECC keys, the allowable sizes are 192,
224, 256, 384, or 521.
Admin
telnet dest Opens a telnet session. Press Ctrl-C to close the session.
Optional and/or required parameters include:
•destis the server's IP address
Guest, Operator, Admin
tftp address [ put | get
] source target
Opens a TFTP session. Press Ctrl-C to close the session.
Optional and/or required parameters include:
•addressis the IP address of the remote TFTP server
•put indicates TFTP will be uploading the source file to replace the
destination file
•get indicates TFTP will be downloading the source file to replace
the destination file
•sourceis the name of the source file
•targetis the name of the file that will be replaced
Admin
trace Starts event tracing. Run trace ? for more help. Operator, Admin
type filename Displays the contents of a text file.
Optional and/or required parameters include:
•filenameis the name of the file to be read
Guest, Operator, Admin
usermod { -b | -r
username | old_user_name
new_user_name }
A set of commands to display, remove and change existing
usernames.
Optional and/or required parameters include:
•-b browses through the existing user names in RUGGEDCOM ROS.
•-r username removes a specified user name to disable the
account
•old_user_name and new_user_name define the user name to
be changed
This command is unavailable in Telnet sessions.
Admin
version Prints the software version. Guest, Operator, Admin
Chapter 2
Using ROS
RUGGEDCOM ROS
User Guide
18 Tracing Events
Command Description Authorized Users
xmodem { send | receive
} filename
Opens an XModem session.
Optional and/or required parameters include:
•send sends the file to the client.
•receive receives the file from the client.
•filenameis the name of the file to be read.
Operator, Admin
Section2.5.2
Tracing Events
The CLI trace command provides a means to trace the operation of various protocols supported by the device.
Trace provides detailed information, including STP packet decodes, IGMP activity and MAC address displays.
NOTE
Tracing has been designed to provide detailed information to expert users. Note that all tracing is
disabled upon device startup.
To trace an event, do the following:
1. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
2. Determine the protocols and associated options available by typing:
trace ?
If an option such as allon or alloff is required, determine which options are available for the desired
protocol by typing:
trace protocol ?
NOTE
If required, expand the trace scope by stringing protocols and their associated options together
using a vertical bar (|).
3. Select the type of trace to run by typing:
trace protocol option
Where:
•protocol is the protocol to trace
•option is the option to use during the trace
Example:
>trace transport allon
TRANSPORT: Logging is enabled
4. Start the trace by typing:
trace
RUGGEDCOM ROS
User Guide
Chapter 2
Using ROS
Executing Commands Remotely via RSH 19
Section2.5.3
Executing Commands Remotely via RSH
The Remote Shell (RSH) facility can be used from a workstation to cause the product to act upon commands as if
they were entered at the CLI prompt. The syntax of the RSH command is usually of the form:
rsh ipaddr –l auth_token command_string
Where:
•ipaddr is the address or resolved name of the device.
•auth_token is the user name (i.e. guest, operator or admin) and corresponding password separated by a
comma. For example, admin,secret.
•command_string is the RUGGEDCOM ROS CLI command to execute.
NOTE
The access level (corresponding to the user name) selected must support the given command.
NOTE
Any output from the command will be returned to the workstation submitting the command.
Commands that start interactive dialogs (such as trace) cannot be used.
Section2.5.4
Using SQL Commands
RUGGEDCOM ROS provides an SQL-like command facility that allows expert users to perform several operations
not possible under the traditional Web or CLI interface. For instance:
• Restoring the contents of a specific table, but not the whole configuration, to their factory defaults.
• Search tables in the database for specific configurations.
• Make changes to tables predicated upon existing configurations.
When combined with RSH, SQL commands provide a means to query and configure large numbers of devices from
a central location.
NOTE
For a list of parameters available under the sql command, refer to Section2.5.1, “Available CLI
Commands”.
NOTE
Read/write access to tables containing passwords or shared secrets is unavailable using SQL
commands.
CONTENTS
•Section2.5.4.1, “Finding the Correct Table”
•Section2.5.4.2, “Retrieving Information”
•Section2.5.4.3, “Changing Values in a Table”
•Section2.5.4.4, “Resetting a Table”
Chapter 2
Using ROS
RUGGEDCOM ROS
User Guide
20 Finding the Correct Table
•Section2.5.4.5, “Using RSH and SQL”
Section2.5.4.1
Finding the Correct Table
Many SQL commands operate upon specific tables in the database, and require the table name to be specified.
Navigating the menu system in the console interface to the desired menu and pressing Ctrl-Z displays the name of
the table. The menu name and the corresponding database table name will be cited.
Another way to find a table name is to type the following in the CLI:
sql info tables
This command also displays menu names and their corresponding database table names depending upon the
features supported by the device. For example:
Table Description
-------------------------------------------------------------------------------
alarms Alarms
cpuDiags CPU Diagnostics
ethPortCfg Port Parameters
ethPortStats Ethernet Statistics
ethPortStatus Port Status
ipCfg IP Services
Section2.5.4.2
Retrieving Information
The following describes various methods for retrieving information about tables and parameters.
Retrieving Information from a Table
Use the following command to display a summary of the parameters within a table, as well as their values:
sql select from table
Where:
•table is the name of the table
Example:
>sql select from ipAddrtable
IP Address Subnet IfIndex IfStats IfTime IfName
172.30.146.88 255.255.224.0 1001 17007888 2994 vlan1
1 records selected
Retrieving Information About a Parameter from a Table
Use the following command to retrieve information about a specific parameter from a table:
RUGGEDCOM ROS
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Chapter 2
Using ROS
Retrieving Information 21
NOTE
The parameter name must be the same as it is displayed in the menu system, unless the name contains
spaces (e.g. ip address). Spaces must be replaced with underscores (e.g. ip_address) or the parameter
name must be wrapped in double quotes (e.g. "ip address").
sql select parameter from table
Where:
•parameter is the name of the parameter
•table is the name of the table
Example:
>sql select "ip address" from ipSwitchIfCfg
IP Address
192.168.0.1
1 records selected
Retrieving Information from a Table Using the Where Clause
Use the following command to display specific parameters from a table that have a specific value:
sql select from table where parameter = value
Where:
•table is the name of the table
•parameter is the name of the parameter
•value is the value of the parameter
Example:
>sql select from ethportcfg where media = 1000T
Port Name ifName Media State AutoN Speed Dupx FlowCtrl LFI Alarm
1 Port 1 1 1000T Enabled On Auto Auto Off Off On
2 Port 2 2 1000T Enabled On Auto Auto Off Off On
3 Port 3 3 1000T Enabled On Auto Auto Off Off On
4 Port 4 4 1000T Enabled On Auto Auto Off Off On
4 records selected
Further refine the results by using and or or operators:
sql select from table where parameter = value [ { and | or } | parameter | = | value ...]
Where:
•table is the name of the table
•parameter is the name of the parameter
•value is the value of the parameter
Example:
>sql select from ethportcfg where media = 1000T and State = enabled
Port Name ifName Media State AutoN Speed Dupx FlowCtrl LFI Alarm
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RUGGEDCOM ROS
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22 Changing Values in a Table
1 Port 1 1 1000T Enabled On Auto Auto Off Off on
2 Port 2 2 1000T Enabled On Auto Auto Off Off On
3 Port 3 3 1000T Enabled On Auto Auto Off Off On
4 Port 4 4 1000T Enabled On Auto Auto Off Off On
4 records selected
Section2.5.4.3
Changing Values in a Table
Use the following command to change the value of parameters in a table:
sql update table set parameter = value
Where:
•table is the name of the table
•parameter is the name of the parameter
•value is the value of the parameter
Example:
>sql update iplcfg set IP_Address_Type = static
1 records updated
Conditions can also be included in the command to apply changes only to parameters that meet specific criteria.
In the following example, flow control is enabled on ports that are operating in 100 Mbps full-duplex mode with
flow control disabled:
>sql update ethportcfg set FlowCtrl = Off where ( Media = 100TX and FlowCtrl = On )
2 records updated
Section2.5.4.4
Resetting a Table
Use the following command to reset a table back to its factory defaults:
sql default into table
Where:
•table is the name of the table
Section2.5.4.5
Using RSH and SQL
The combination of remote shell scripting and SQL commands offers a means to interrogate and maintain a
large number of devices. Consistency of configuration across sites may be verified by this method. The following
presents a simple example where the devices to interrogate are drawn from the file Devices:
C:> type Devices
10.0.1.1
10.0.1.2
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Chapter 2
Using ROS
Selecting Ports in RUGGEDCOM ROS 23
C:\> for /F %i in (devices) do rsh %i -l admin,admin sql select from ipAddrtable
C:\>rsh 10.0.1.1 -l admin,admin sql select from ipAddrtable
IP Address Subnet IfIndex IfStats IfTime IfName
192.168.0.31 255.255.255.0 1001 274409096 2218 vlan1
1 records selected
C:\>rsh 10.0.1.2 -l admin,admin sql select from ipAddrtable
0 records selected
C:\
Section2.6
Selecting Ports in RUGGEDCOM ROS
Many features in ROS can be configured for one or more ports on the device. The following describes how to
specify a single port, a range of ports, or all ports.
Select a single port by specifying the port number:
2
Select a range of ports using a dash (-) between the first port and the last port in the list:
1-4
Select multiple ports by defining a comma-separated list:
1,4,6,9
Use the All option to select all ports in the device, or, if available, use the None option to select none of the
ports.
Section2.7
Managing the Flash File System
This section describes how to manage the file system.
CONTENTS
•Section2.7.1, “Viewing a List of Flash Files”
•Section2.7.2, “Viewing Flash File Details”
•Section2.7.3, “Defragmenting the Flash File System”
Section2.7.1
Viewing a List of Flash Files
To view a list of files currently stored in Flash memory, do the following:
Chapter 2
Using ROS
RUGGEDCOM ROS
User Guide
24 Viewing Flash File Details
1. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
2. Type flashfiles. A list of files currently in Flash memory is displayed, along with their locations and the
amount of memory they consume. For example:
>flashfiles
-----------------------------------------------------------------
Filename Base Size Sectors Used
-----------------------------------------------------------------
boot.bin 00000000 110000 0-16 1095790
main.bin 00110000 140000 17-36 1258403
syslog.txt 00260000 140000 38-57 19222
.
.
.
-----------------------------------------------------------------
Section2.7.2
Viewing Flash File Details
To view the details of a file currently stored in Flash memory, do the following:
1. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
2. Display information about a file by typing:
flashfiles info filename
Where:
•filename is the name of the file stored in Flash memory
Details, similar to the following, are displayed.
>flashfiles info main.bin
Flash file information for main.bin:
Header version : 4
Platform : ROS-CF52
File name : main.bin
Firmware version : v4.3.0
Build date : Sep 27 2014 15:50
File length : 2624659
Board IDs : 3d
Header CRC : 73b4
Header CRC Calc : 73b4
Body CRC : b441
Body CRC Calc : b441
Section2.7.3
Defragmenting the Flash File System
The flash memory is defragmented automatically whenever there is not enough memory available for a binary
upgrade. However, fragmentation can occur whenever a new file is uploaded to the unit. Fragmentation causes
RUGGEDCOM ROS
User Guide
Chapter 2
Using ROS
Accessing BIST Mode 25
sectors of available memory to become separated by ones allocated to files. In some cases, the total available
memory might be sufficient for a binary upgrade, but that memory may not be available in one contiguous region.
To defragment the flash memory, do the following:
1. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
2. Defragment the flash memory by typing:
flashfiles defrag
Section2.8
Accessing BIST Mode
BIST (Built-In-Self-Test) mode is used by service technicians to test and configure internal functions of the device.
It should only be accessed for troubleshooting purposes.
CAUTION!
Mechanical hazard – risk of damage to the device. Excessive use of BIST functions may cause increase
wear on the device, which may void the warranty. Avoid using BIST functions unless instructed by a
Siemens Customer Support representative.
To access BIST mode, do the following:
IMPORTANT!
Do not connect the device to the network when it is in BIST mode. The device will generate excess
multicast traffic in this mode.
1. Disconnect the device from the network.
2. Connect to RUGGEDCOM ROS through the RS-232 console connection and a terminal application. For more
information, refer to Section3.1.2, “Connecting Directly”.
3. Reset the device. For more information, refer to Section4.12, “Resetting the Device”.
4. During the boot up sequence, press Ctrl-C when prompted. The command prompt for BIST appears.
>
5. Type help to view a list of all available options under BIST.
Chapter 2
Using ROS
RUGGEDCOM ROS
User Guide
26 Accessing BIST Mode
RUGGEDCOM ROS
User Guide
Chapter 3
Getting Started
Connecting to ROS 27
Getting Started
This section describes startup tasks to be performed during the initial commissioning of the device. Tasks include
connecting to the device and accessing the RUGGEDCOM ROS Web User InterfaceCLI, as well as configuring a basic
network.
CONTENTS
•Section3.1, “Connecting to ROS”
•Section3.2, “Configuring a Basic Network”
Section3.1
Connecting to ROS
This section describes the various methods for connecting to the device.
CONTENTS
•Section3.1.1, “Default IP Address”
•Section3.1.2, “Connecting Directly”
•Section3.1.3, “Connecting Remotely”
Section3.1.1
Default IP Address
The default IP address for the device is 192.168.0.1/24.
Section3.1.2
Connecting Directly
RUGGEDCOM ROS can be accessed through a direct console connection for management and troubleshooting
purposes. A console connection provides access to the console interface and CLI.
To establish a console connection to the device, do the following:
1. Connect a workstation (either a terminal or computer running terminal emulation software) to the console
port on the device. For more information about the console port, refer to the RS1600/RS1600F/RS1600T
Installation Guide.
Chapter 3
Getting Started
RUGGEDCOM ROS
User Guide
28 Connecting Remotely
NOTE
The baud rate for the device is printed on the chassis exterior near the console port.
2. Configure the workstation as follows:
• Speed (baud): 57600
• Data Bits: 8
• Parity: None
• Flow Control: Off
• Terminal ID: VT100
• Stop Bit: 1
3. Connect to the device. Once the connection is established, the login form appears. For more information
about logging in to the device, refer to Section2.1, “Logging In”.
Section3.1.3
Connecting Remotely
RUGGEDCOM ROS can be accessed securely and remotely either through a Web browser, terminal or workstation
running terminal emulation software.
Using a Web Browser
Web browsers provide a secure connection to the Web interface for RUGGEDCOM ROS using the SSL (Secure
Socket Layer) communication method. SSL encrypts traffic exchanged with its clients.
The RUGGEDCOM ROS Web server guarantees that all communications with the client are private. If a client
requests access through an insecure HTTP port, the client is automatically rerouted to the secure port. Access to
the Web server through SSL will only be granted to clients that provide a valid user name and password.
To establish a connection through a Web browser, do the following:
1. On the workstation being used to access the device, configure an Ethernet port to use an IP address falling
within the subnet of the device. The default IP address is 192.168.0.1/24.
For example, to configure the device to connect to one of the available Ethernet ports, assign an IP address to
the Ethernet port on the workstation in the range of 192.168.0.3 to 192.168.0.254.
2. Open a Web browser. For a list of recommended Web browsers, refer to “System Requirements”.
IMPORTANT!
Upon connecting to the device, some Web browsers may report the Web server's certificate cannot
be verified against any known certificates. This is expected behavior, and it is safe to instruct the
browser to accept the certificate. Once the certificate is accepted, all communications with the
Web server through that browser will be secure.
3. In the address bar, type the IP address for the port that is connected to the network. For example, to access
the device using its factory default IP address, type https://192.168.0.1 and press Enter. Once the
connection is established, the login screen for the Web interface appears.
For more information about logging in to the device, refer to Section2.1, “Logging In”. For more information
about the Web interface, refer to Section2.3, “Using the Web Interface”.
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Chapter 3
Getting Started
Configuring a Basic Network 29
Using a Terminal or Terminal Emulation Software
A terminal or computer running terminal emulation software provides access to the console interface for
RUGGEDCOM ROS through a Telnet, RSH (Remote Shell) or SSH (Secure Shell) service.
NOTE
IP services can be restricted to control access to the device. For more information, refer to Section4.9,
“Configuring IP Services”.
To establish a connection through a terminal or terminal emulation software, do the following:
1. Select the service (i.e. Telnet, RSH or SSH).
2. Enter the IP address for the port that is connected to the network.
3. Connect to the device. Once the connection is established, the login form appears. For more information
about logging in to the device, refer to Section2.1, “Logging In”.
Section3.2
Configuring a Basic Network
To configure a basic network, do the following:
1. Connect a computer to one of the switch ports of the device and configure the computer to be on the same
subnet as the port.
2. Configure the computer to use the address of VLAN1 as the default gateway.
3. Connect a second computer to a different switch port of the same device, and configure the computer to be
on the same subnet as the port.
4. Configure the second computer to use the address of VLAN1 as the default gateway. The default IP address is
192.168.0.1.
5. Make sure both computers connected to the device can ping one another.
Chapter 3
Getting Started
RUGGEDCOM ROS
User Guide
30 Configuring a Basic Network
RUGGEDCOM ROS
User Guide
Chapter 4
Device Management
Viewing Product Information 31
Device Management
This chapter describes how to configure and manage the device and its components, such as module interfaces,
logs and files.
CONTENTS
•Section4.1, “Viewing Product Information”
•Section4.2, “Viewing CPU Diagnostics”
•Section4.3, “Restoring Factory Defaults”
•Section4.4, “Uploading/Downloading Files”
•Section4.5, “Managing Logs”
•Section4.6, “Managing Ethernet Ports”
•Section4.7, “Managing IP Interfaces”
•Section4.8, “Managing IP Gateways”
•Section4.9, “Configuring IP Services”
•Section4.10, “Managing Remote Monitoring”
•Section4.11, “Upgrading/Downgrading Firmware”
•Section4.12, “Resetting the Device”
•Section4.13, “Decommissioning the Device”
Section4.1
Viewing Product Information
During troubleshooting or when ordering new devices, Siemens personnel may request specific information about
the device, such as the model, order code or serial number.
To view information about the device, navigate to Diagnostics» View Product Information. The Product
Information form appears.
Chapter 4
Device Management
RUGGEDCOM ROS
User Guide
32 Viewing Product Information
9
5
4
3
2
1
6
7
8
Figure9:Product Information Form (Example)
1.MAC Address Box 2.Order Code Box 3.Classification Box 4.Serial Number Box 5.Boot Version Box 6.Main Version Box
7.Required Boot Box 8.Hardware ID Box 9.Descr Box 10.Reload Button
This screen displays the following information:
Parameter Description
MAC Address Synopsis: ##-##-##-##-##-## where ## ranges 0 to FF
Shows the unique MAC address of the device.
Order Code Synopsis: Any 57 characters
Shows the order code of the device.
Classification Synopsis: Any 15 characters
Provides system classification.
The value Controlled indicates the main firmware is a Controlled release. The value Non-
Controlled indicates the main firmware is a Non-Controlled release.
Serial Number Synopsis: Any 31 characters
Shows the serial number of the device.
Boot Version Synopsis: Any 47 characters
Shows the version and the build date of the boot loader software.
Main Version Synopsis: Any 47 characters
Shows the version and build date of the main operating system software.
Required Boot Synopsis: Any 15 characters
Shows the minimum boot software loader version required by running main.
Hardware ID Synopsis: { RSMCPU (40-00-0008 Rev B1), RSMCPU2 (40-00-0026 Rev A1), RS400
(40-00-0010 Rev B2), RMC30, RS900 (40-00-0025 Rev B1), RS900 (40-00-0032 Rev
B1), RS1600M, RS400 (40-00-0010 Rev C1), RSG2100, RS900G, RSG2200, RS969,
RS900 (v2, 40-00-0066), RS900 (v2, 40-00-0067), , RS416 (40-00-0078), RMC30 (v2),
RS930 (40-00-0089), RS969 (v2, 40-00-0090), RS910 (40-00-0091-001 Rev A), RS920L
(40-00-0102-001 Rev A), RS940G (40-00-0097-000 Rev A), RSi80X series CPU board,
RSG2300, RS416v2, ... }
Shows the type, part number, and revision level of the hardware.
RUGGEDCOM ROS
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Chapter 4
Device Management
Viewing CPU Diagnostics 33
Section4.2
Viewing CPU Diagnostics
To view CPU diagnostic information useful for troubleshooting hardware and software performance, navigate to
Diagnostics» View CPU Diagnostics. The CPU Diagnostics form appears.
2
10
1
3
4
5
6
7
8
9
Figure10:CPU Diagnostics Form
1.Running Time Box 2.Total Powered Time Box 3.CPU Usage Box 4.RAM Total Box 5.RAM Free Box 6.RAM Low Watermark Box
7.Temperature Box 8.Free Rx Bufs Box 9.Free Tx Bufs Box 10.Reload Button
This screen displays the following information:
Parameter Description
Running Time Synopsis: DDDD days, HH:MM:SS
The amount of time since the device was last powered on.
Total Powered time Synopsis: DDDD days, HH:MM:SS
The cumulative powered up time of the device.
CPU Usage Synopsis: 0.0 to 100.0%
The percentage of available CPU cycles used for device operation as measured over the last
second.
RAM Total Synopsis: 0 to 4294967295
The total size of RAM in the system.
RAM Free Synopsis: 0 to 4294967295
The total size of RAM still available.
RAM Low Watermark Synopsis: 0 to 4294967295
The size of RAM that have never been used during the system runtime.
Temperature Synopsis: -32768 to 32767 C
The temperature on CPU board.
Free Rx Bufs Synopsis: 0 to 4294967295
Chapter 4
Device Management
RUGGEDCOM ROS
User Guide
34 Restoring Factory Defaults
Parameter Description
Free Rx Buffers.
Free Tx Bufs Synopsis: 0 to 4294967295
Free Tx Buffers.
Section4.3
Restoring Factory Defaults
The device can be completely or partially restored to its original factory default settings. Excluding groups of
parameters from the factory reset, such as those that affect basic connectivity and SNMP management, is useful
when communication with the device is still required during the reset.
The following categories are not affected by a selective configuration reset:
• IP Interfaces
• IP Gateways
• SNMP Users
• SNMP Security to Group Maps
• SNMP Access
• RUGGEDCOM Discovery Protocol™ (RCDP)
In addition, the following categories are not affected by a full or selective configuration reset:
• Time Zone
• DST Offset
• DST Rule
To restore factory defaults, do the following:
1. Navigate to Diagnostics» Load Factory Defaults. The Load Factory Defaults form appears.
3
2
1
Figure11:Load Factory Defaults Form
1.Defaults Choice List 2.Apply Button 3.Reload
2. Configure the following parameter(s) as required:
NOTE
If the VLAN ID for the Management IP interface is not 1, setting Defaults Choice to Selected will
automatically set it to 1.
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Chapter 4
Device Management
Uploading/Downloading Files 35
Parameter Description
Defaults Choice Synopsis: { None, Selected, All }
Setting some records like IP Interfaces management interface, default gateway, SNMP
settings to default value would cause switch not to be accessible with management
applications. This parameter allows user to choose to load defaults to Selected tables,
which would preserve configuration for tables that are critical for switch management
applications, or to force All tables to default settings.
3. Click Apply.
Section4.4
Uploading/Downloading Files
Files can be transferred between the device and a host computer using any of the following methods:
• Xmodem using the CLI shell over a Telnet or RS-232 console session
• TFTP client using the CLI shell in a console session and a remote TFTP server
• TFTP server from a remote TFTP client
• SFTP (secure FTP over SSH) from a remote SFTP client
IMPORTANT!
Scripts can be used to automate the management of files on the device. However, depending on the
size of the target file(s), a delay between any concurrent write and read commands may be required,
as the file may not have been fully saved before the read command is issued. A general delay of five
seconds is recommended, but testing is encouraged to optimize the delay for the target file(s) and
operating environment.
NOTE
The contents of the internal file system are fixed. New files and directories cannot be created, and
existing files cannot be deleted. Only the files that can be uploaded to the device can be overwritten.
Files that may need to be uploaded or downloaded include:
•main.bin – the main RUGGEDCOM ROS application firmware image
•boot.bin – the boot loader firmware image
•fpga.xsvf – the FPGA firmware binary image
•config.csv – the complete configuration database, in the form of a comma-delimited ASCII text file
•factory.txt – contains the MAC address, order code and serial number. Factory data must be signed.
•banner.txt – contains text that appears on the login screen
•ssl.crt – the SSL certificate. Contains both the SSL certificate and the corresponding RSA private key file.
•ssh.keys – the SSH keys for the device
CONTENTS
•Section4.4.1, “Uploading/Downloading Files Using XMODEM”
•Section4.4.2, “Uploading/Downloading Files Using a TFTP Client”
•Section4.4.3, “Uploading/Downloading Files Using a TFTP Server”
Chapter 4
Device Management
RUGGEDCOM ROS
User Guide
36 Uploading/Downloading Files Using XMODEM
•Section4.4.4, “Uploading/Downloading Files Using an SFTP Server”
Section4.4.1
Uploading/Downloading Files Using XMODEM
To updload or download a file using XMODEM, do the following:
NOTE
This method requires a host computer that has terminal emulation or Telnet software installed and the
ability to perform XMODEM transfers.
1. Establish a connection between the device and the host computer. For more information, refer to Section3.1,
“Connecting to ROS”.
2. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
3. At the CLI prompt, type:
xmodem [ send | receive ] filename
Where:
•send sends the file to the host computer
•receive pulls the file from the host computer
•filename is the name of the file (i.e. main.bin)
NOTE
If available in the terminal emulation or Telnet software, select the XModem 1K protocol for
transmission over the standard XModem option.
4. When the device responds with Press Ctrl-X to cancel, launch the XMODEM transfer from the host
computer. The device will indicate when the transfer is complete.
The following is an example from the CLI shell of a successful XMODEM file transfer:
>xmodem receive main.bin
Press Ctrl-X to cancel
Receiving data now ...C
Received 1428480 bytes. Closing file main.bin ...
main.bin transferred successfully
5. If the file has been uploaded, reset the device. For more information, refer to Section4.12, “Resetting the
Device”
Section4.4.2
Uploading/Downloading Files Using a TFTP Client
To upload or download a file using a TFTP client, do the following:
IMPORTANT!
TFTP does not define an authentication scheme. Any use of the TFTP client or server is considered
highly insecure.
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Uploading/Downloading Files Using a TFTP Server 37
NOTE
This method requires a TFTP server that is accessible over the network.
1. Identify the IP address of the computer running the TFTP server.
2. Establish a connection between the device and the host computer. For more information, refer to Section3.1,
“Connecting to ROS”.
3. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
4. At the CLI prompt, type:
tftp address [ get | put ] source-filename destination-filename
Where:
•get copies files from the host computer to the device
•put copies files from the device to the host computer
•address is the IP address of the computer running the TFTP server
•source-filename is the name of the file to be transferred
•destination-filename is the name of the file (on the device or the TFTP server) that will be replaced
during the transfer
The following is an example of a successful TFTP client file transfer:
>tftp 10.0.0.1 get ROS-CF52_Main_v4.3.0.bin main.bin
TFTP CMD: main.bin transfer ok. Please wait, closing file ...
TFTP CMD: main.bin loading successful.
5. If the file has been uploaded, reset the device. For more information, refer to Section4.12, “Resetting the
Device”
Section4.4.3
Uploading/Downloading Files Using a TFTP Server
To updload or download a file using a TFTP server, do the following:
IMPORTANT!
TFTP does not define an authentication scheme. Any use of the TFTP client or server is considered
highly insecure.
NOTE
This method requires a host computer that has TFTP server software installed.
IMPORTANT!
Interaction with TFTP servers is strictly controlled within the device to prevent unauthorized access.
Make sure the device is configured to accept the TFTP connection. For more information, refer to
Section4.9, “Configuring IP Services”.
1. Establish a connection between the device and the host computer. For more information, refer to Section3.1,
“Connecting to ROS”.
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2. Initialize the TFTP server on the host computer and launch the TFTP transfer. The server will indicate when the
transfer is complete.
The following is an example of a successful TFTP server exchange:
C:\>tftp -i 10.1.0.1 put C:\files\ROS-CF52_Main_v4.3.0.bin main.bin
Transfer successful: 1428480 bytes in 4 seconds, 375617 bytes/s
3. If the file has been uploaded, reset the device. For more information, refer to Section4.12, “Resetting the
Device”
Section4.4.4
Uploading/Downloading Files Using an SFTP Server
SFTP (Secure File Transfer Protocol) is a file transfer mechanism that uses SSH to encrypt every aspect of file
transfer between a networked client and server.
NOTE
The device does not have an SFTP client and, therefore, can only receive SFTP files from an external
source. SFTP requires authentication for the file transfer.
To updload or download a file using an SFTP server, do the following:
NOTE
This method requires a host computer that has SFTP client software installed.
1. Establish an SFTP connection between the device and the host computer.
2. Launch the SFTP transfer. The client will indicate when the transfer is complete.
The following is an example of a successful SFTP server exchange:
user@host$ sftp admin@ros_ip
Connecting to ros_ip...
admin@ros_ip's password:
sftp> put ROS-CF52_Main_v4.3.0.bin main.bin
Uploading ROS-CF52_Main_v4.3.0.bin to /main.bin
ROS-CF52_Main_v4.3.0.bin 100% 2139KB 48.6KB/s 00:44
sftp> put ROS-MPC83_Main_v4.3.0.bin main.bin
Uploading ROS-MPC83_Main_v4.3.bin to /main.bin
ROS-MPC83_Main_v4.3.0.bin 100% 2139KB 48.6KB/s 00:44
sftp>
3. If the file has been uploaded, reset the device. For more information, refer to Section4.12, “Resetting the
Device”
Section4.5
Managing Logs
The crash (crashlog.txt) and system (syslog.txt) log files contain historical information about events that
have occurred during the operation of the device.
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The crash log contains debugging information related to problems that might have resulted in unplanned restarts
of the device or which may effect the operation of the device. A file size of 0 bytes indicates that no unexpected
events have occurred.
The system log contains a record of significant events including startups, configuration changes, firmware
upgrades and database re-initializations due to feature additions. The system log will accumulate information until
it is full, holding approximately 2 MB of data.
CONTENTS
•Section4.5.1, “Viewing Local and System Logs”
•Section4.5.2, “Clearing Local and System Logs”
•Section4.5.3, “Configuring the Local System Log”
•Section4.5.4, “Managing Remote Logging”
Section4.5.1
Viewing Local and System Logs
The local crash and system logs can both be downloaded from the device and viewed in a text editor. For more
information about downloading log files, refer to Section4.4, “Uploading/Downloading Files”.
To view the system log through the Web interface, navigate to Diagnostics» View System Log. The syslog.txt
form appears.
Figure12:syslog.txt Form
Section4.5.2
Clearing Local and System Logs
To clear both the local crash and system logs, log in to the CLI shell and type:
clearlogs
To clear only the local system log, log in to the Web interface and do the following:
1. Navigate to Diagnostics» Clear System Log. The Clear System Log form appears.
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40 Configuring the Local System Log
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Figure13:Clear System Log Form
1.Confirm Button
2. Click Confirm.
Section4.5.3
Configuring the Local System Log
To configure the severity level for the local system log, do the following:
NOTE
For maximum reliability, use remote logging. For more information, refer to Section4.5.4, “Managing
Remote Logging”.
1. Navigate to Administration» Configure Syslog» Configure Local Syslog. The Local Syslog form appears.
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Figure14:Local Syslog Form
1.Local Syslog Level 2.Apply Button 3.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
Local Syslog Level Synopsis: { EMERGENCY, ALERT, CRITICAL, ERROR, WARNING, NOTICE,
INFORMATIONAL, DEBUGGING }
Default: INFORMATIONAL
The severity of the message that has been generated. Note that the severity level
selected is considered the minimum severity level for the system. For example, if ERROR
is selected, the system sends any syslog messages generated by Error, Critical, Alert and
Emergency.
3. Click Apply.
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Section4.5.4
Managing Remote Logging
In addition to the local system log maintained on the device, a remote system log can be configured as well to
collect important event messages. The syslog client resides on the device and supports up to 5 collectors (or syslog
servers).
The remote syslog protocol, defined in RFC 3164, is a UDP/IP-based transport that enables the device to send event
notification messages across IP networks to event message collectors, also known as syslog servers. The protocol
is designed to simply transport these event messages from the generating device to the collector(s).
CONTENTS
•Section4.5.4.1, “Configuring the Remote Syslog Client”
•Section4.5.4.2, “Viewing a List of Remote Syslog Servers”
•Section4.5.4.3, “Adding a Remote Syslog Server”
•Section4.5.4.4, “Deleting a Remote Syslog Server”
Section4.5.4.1
Configuring the Remote Syslog Client
To configure the remote syslog client, do the following:
1. Navigate to Administration» Configure Syslog» Configure Remote Syslog Client. The Remote Syslog
Client form appears.
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Figure15:Remote Syslog Client Form
1.UDP Port 2.Apply Button 3.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
UDP Port Synopsis: 1025 to 65535 or { 514 }
Default: 514
The local UDP port through which the client sends information to the server(s).
3. Click Apply.
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Section4.5.4.2
Viewing a List of Remote Syslog Servers
To view a list of known remote syslog servers, navigate to Administration» Configure Syslog» Configure
Remote Syslog Server. The Remote Syslog Server table appears.
Figure16:Remote Syslog Server Table
If remote syslog servers have not been configured, add the servers as needed. For more information, refer to
Section4.5.4.3, “Adding a Remote Syslog Server”.
Section4.5.4.3
Adding a Remote Syslog Server
RUGGEDCOM ROS supports up to 5 remote syslog servers (or collectors). Similar to the local system log, a remote
system log server can be configured to log information at a specific severity level. Only messages of a severity
level equal to or greater than the specified severity level are written to the log.
To add a remote syslog server to the list of known servers, do the following:
1. Navigate to Administration» Configure Syslog» Configure Remote Syslog Server. The Remote Syslog
Server table appears.
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Figure17:Remote Syslog Server Table
1.InsertRecord
2. Click InsertRecord. The Remote Syslog Server form appears.
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Figure18:Remote Syslog Server Form
1.IP Address Box 2.UDP Port Box 3.Facility Box 4.Severity Box 5.Apply Button 6.Delete Button 7.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
IP Address Synopsis: ###.###.###.### where ### ranges from 0 to 255
Syslog server IP Address.
UDP Port Synopsis: 1025 to 65535 or { 514 }
Default: 514
The UDP port number on which the remote server listens.
Facility Synopsis: { USER, LOCAL0, LOCAL1, LOCAL2, LOCAL3, LOCAL4, LOCAL5, LOCAL6,
LOCAL7 }
Default: LOCAL7
Syslog Facility is one information field associated with a syslog message. The syslog
facility is the application or operating system component that generates a log message.
ROS map all syslog logging information onto a single facility which is configurable by
user to facilitate remote syslog server.
Severity Synopsis: { EMERGENCY, ALERT, CRITICAL, ERROR, WARNING, NOTICE,
INFORMATIONAL, DEBUGGING }
Default: DEBUGGING
The severity level is the severity of the message that has been generated. Please note
that the severity level user select is accepted as the minimum severity level for the
system. For example, if user selects the severity level as 'Error' then the system send any
syslog message originated by Error, Critical, Alert and Emergency.
4. Click Apply.
Section4.5.4.4
Deleting a Remote Syslog Server
To delete a remote syslog server from the list of known servers, do the following:
1. Navigate to Administration» Configure Syslog» Configure Remote Syslog Server. The Remote Syslog
Server table appears.
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44 Managing Ethernet Ports
Figure19:Remote Syslog Server Table
2. Select the server from the table. The Remote Syslog Server form appears.
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Figure20:Remote Syslog Server Form
1.IP Address Box 2.UDP Port Box 3.Facility Box 4.Severity Box 5.Apply Button 6.Delete Button 7.Reload Button
3. Click Delete.
Section4.6
Managing Ethernet Ports
This section describes how to manage Ethernet ports.
NOTE
For information about configuring remote monitoring for Ethernet ports, refer to Section4.10,
“Managing Remote Monitoring”.
CONTENTS
•Section4.6.1, “Controller Protection Through Link Fault Indication (LFI)”
•Section4.6.2, “Viewing the Status of Ethernet Ports”
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•Section4.6.3, “Viewing Statistics for All Ethernet Ports”
•Section4.6.4, “Viewing Statistics for Specific Ethernet Ports”
•Section4.6.5, “Clearing Statistics for Specific Ethernet Ports”
•Section4.6.6, “Configuring an Ethernet Port”
•Section4.6.7, “Configuring Port Rate Limiting”
•Section4.6.8, “Configuring Port Mirroring”
•Section4.6.9, “Configuring Link Detection”
•Section4.6.10, “Detecting Cable Faults”
•Section4.6.11, “Resetting Ethernet Ports”
Section4.6.1
Controller Protection Through Link Fault Indication (LFI)
Modern industrial controllers often feature backup Ethernet ports used in the event of a link failure. When these
interfaces are supported by media (such as fiber) that employ separate transmit and receive paths, the interface
can be vulnerable to failures that occur in only one of the two paths.
Consider for instance two switches (A and B) connected to a controller. Switch A is connected to the main port on
the controller, while Switch B is connected to the backup port, which is shut down by the controller while the link
with Switch A is active. Switch B must forward frames to the controller through Switch A.
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Figure21:Example
1.Switch A 2.Switch B 3.Main Transmit Path 4.Backup Transmit Path 5.Controller
If the transmit path from the controller to Switch A fails, Switch A still generates a link signal to the controller
through the receive path. The controller still detects the link with Switch A and does not failover to the backup
port.
This situation illustrates the need for a notification method that tells a link partner when the link integrity signal
has stopped. Such a method natively exists in some link media, but not all.
100Base-TX, 1000Base-T, 1000Base-X Includes a built-in auto-negotiation feature (i.e. a special flag called Remote Fault Indication
is set in the transmitted auto-negotation signal).
100Base-FX Links Includes a standard Far-End-Fault-Indication (FEFI) feature defined by the IEEE 802.3
standard for this link type. This feature includes:
•Transmitting FEFI
Transmits a modified link integrity signal in case a link failure is detected (i.e. no link signal
is received from the link partner)
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•Detecting FEFI
Indicates link loss in case an FEFI signal is received from the link partner
10Base-FL LInks No standard support.
10Base-FL links do not have a native link partner notification mechanism and FEFI support in 100Base-FX links is
optional according to the IEEE 802.3 standard, which means that some links partners may not support it.
Siemens offers an advanced Link-Fault-Indication (LFI) feature for the links that do not have a native link partner
notification mechanism. With LFI enabled, the device bases the generation of a link integrity signal upon its
reception of a link signal. In the example described previously, if switch A fails to receive a link signal from the
controller, it will stop generating a link signal. The controller will detect the link failure and failover to the backkup
port.
IMPORTANT!
If both link partners have the LFI feature, it must not be enabled on both sides of the link. If it is
enabled on both sides, the link will never be established, as each link partner will be waiting for the
other to transmit a link signal.
The switch can also be configured to flush the MAC address table for the controller port. Frames destined for the
controller will be flooded to Switch B where they will be forwarded to the controller (after the controller transmits
its first frame).
Section4.6.2
Viewing the Status of Ethernet Ports
To view the current status of each Ethernet port, navigate to Ethernet Ports» View Port Status. The Port Status
table appears.
Figure22:Port Status Table
This table displays the following information:
Parameter Description
Port Synopsis: 1 to maximum port number
The port number as seen on the front plate silkscreen of the switch.
Name Synopsis: Any 15 characters
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Parameter Description
A descriptive name that may be used to identify the device conected on that port.
Link Synopsis: { ----, ----, Down, Up }
The port's link status.
Speed Synopsis: { ---, 10M, 100M, 1G, 10G }
The port's current speed.
Duplex Synopsis: { ----, Half, Full }
The port's current duplex status.
Section4.6.3
Viewing Statistics for All Ethernet Ports
To view statistics collected for all Ethernet ports, navigate to Ethernet Stats» View Ethernet Statistics. The
Ethernet Statistics table appears.
Figure23:Ethernet Statistics Table
This table displays the following information:
Parameter Description
Port Synopsis: 1 to maximum port number
The port number as seen on the front plate silkscreen of the switch.
State Synopsis: { ----, ----, Down, Up }
InOctets Synopsis: 0 to 4294967295
The number of octets in received good packets (Unicast+Multicast+Broadcast) and dropped
packets.
OutOctets Synopsis: 0 to 4294967295
The number of octets in transmitted good packets.
InPkts Synopsis: 0 to 4294967295
The number of received good packets (Unicast+Multicast+Broadcast) and dropped packets.
OutPkts Synopsis: 0 to 4294967295
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Parameter Description
The number of transmitted good packets.
ErrorPkts Synopsis: 0 to 4294967295
The number of any type of erroneous packet.
Section4.6.4
Viewing Statistics for Specific Ethernet Ports
To view statistics collected for specific Ethernet ports, navigate to Ethernet Stats» View Ethernet Port Statistics.
The Ethernet Port Statistics table appears.
Figure24:Ethernet Port Statistics Table
This table displays the following information:
Parameter Description
Port Synopsis: 1 to maximum port number
The port number as seen on the front plate silkscreen of the switch.
InOctets Synopsis: 0 to 18446744073709551615
The number of octets in received good packets (Unicast+Multicast+Broadcast) and dropped
packets.
OutOctets Synopsis: 0 to 18446744073709551615
The number of octets in transmitted good packets.
InPkts Synopsis: 0 to 18446744073709551615
The number of received good packets (Unicast+Multicast+Broadcast) and dropped packets.
OutPkts Synopsis: 0 to 18446744073709551615
The number of transmitted good packets.
TotalInOctets Synopsis: 0 to 18446744073709551615
The total number of octets of all received packets. This includes data octets of rejected and
local packets which are not forwarded to the switching core for transmission. It should
reflect all the data octets received on the line.
TotalInPkts Synopsis: 0 to 18446744073709551615
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Parameter Description
The number of received packets. This includes rejected, dropped local, and packets which are
not forwarded to the switching core for transmission. It should reflect all packets received
ont the line.
InBroadcasts Synopsis: 0 to 18446744073709551615
The number of good Broadcast packets received.
InMulticasts Synopsis: 0 to 18446744073709551615
The number of good Multicast packets received.
CRCAlignErrors Synopsis: 0 to 4294967295
The number of packets received which meet all the following conditions:
• Packet data length is between 64 and 1536 octets inclusive.
• Packet has invalid CRC.
• Collision Event has not been detected.
• Late Collision Event has not been detected.
OversizePkts Synopsis: 0 to 4294967295
The number of packets received with data length greater than 1536 octets and valid CRC.
Fragments Synopsis: 0 to 4294967295
The number of packets received which meet all the following conditions:
• Packet data length is less than 64 octets, or packet without SFD and is less than 64 octets
in length.
• Collision Event has not been detected.
• Late Collision Event has not been detected.
• Packet has invalid CRC.
Jabbers Synopsis: 0 to 4294967295
The number of packets which meet all the following conditions:
• Packet data length is greater that 1536 octets.
• Packet has invalid CRC.
Collisions Synopsis: 0 to 4294967295
The number of received packets for which Collision Event has been detected.
LateCollisions Synopsis: 0 to 4294967295
The number of received packets for which Late Collision Event has been detected.
Pkt64Octets Synopsis: 0 to 4294967295
The number of received and transmitted packets with size of 64 octets. This includes
received and transmitted packets as well as dropped and local received packets. This does
not include rejected received packets.
Pkt65to127Octets Synopsis: 0 to 4294967295
The number of received and transmitted packets with size of 65 to 127 octets. This includes
received and transmitted packets as well as dropped and local received packets. This does
not include rejected received packets.
Pkt128to255Octets Synopsis: 0 to 4294967295
The number of received and transmitted packets with size of 128 to 257 octets. This includes
received and transmitted packets as well as dropped and local received packets. This does
not include rejected received packets.
Pkt256to511Octets Synopsis: 0 to 4294967295
The number of received and transmitted packets with size of 256 to 511 octets. This includes
received and transmitted packets as well as dropped and local received packets. This does
not include rejected received packets.
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Parameter Description
Pkt512to1023Octets Synopsis: 0 to 4294967295
The number of received and transmitted packets with size of 512 to 1023 octets. This
includes received and transmitted packets as well as dropped and local received packets. This
does not include rejected received packets.
Pkt1024to1536Octets Synopsis: 0 to 4294967295
The number of received and transmitted packets with size of 1024 to 1536 octets. This
includes received and transmitted packets as well as dropped and local received packets. This
does not include rejected received packets.
DropEvents Synopsis: 0 to 4294967295
The number of received packets that are droped due to lack of receive buffers.
OutMulticasts Synopsis: 0 to 18446744073709551615
The number of transmitted Multicast packets. This does not include Broadcast packets.
OutBroadcasts Synopsis: 0 to 18446744073709551615
The number of transmitted Broadcast packets.
UndersizePkts Synopsis: 0 to 4294967295
The number of received packets which meet all the following conditions:
• Packet data length is less than 64 octets.
• Collision Event has not been detected.
• Late Collision Event has not been detected.
• Packet has valid CRC.
Section4.6.5
Clearing Statistics for Specific Ethernet Ports
To clear the statistics collected for one or more Ethernet ports, do the following:
1. Navigate to Ethernet Stats» Clear Ethernet Port Statistics. The Clear Ethernet Port Statistics form
appears.
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Figure25:Clear Ethernet Port Statistics Form (Typical)
1.Port Check Boxes 2.Confirm Button
2. Select one or more Ethernet ports.
3. Click Confirm.
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Section4.6.6
Configuring an Ethernet Port
To configure an Ethernet port, do the following:
1. Navigate to Ethernet Ports» Configure Port Parameters. The Port Parameters table appears.
Figure26:Port Parameters Table
2. Select an Ethernet port. The Port Parameters form appears.
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Figure27:Port Parameters Form
1.Port Box 2.Name Box 3.Media Box 4.State Options 5.AutoN Options 6.Speed List 7.Dupx List 8.FlowCtrl Options
9.LFI Option 10.Alarm Options 11.Act on LinkDown Options 12.DownShift Options 13.Apply Button 14.Reload Button
3. Configure the following parameter(s) as required:
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Parameter Description
Port Synopsis: 1 to maximum port number
Default: 1
The port number as seen on the front plate silkscreen of the switch.
Name Synopsis: Any 15 characters
Default: Port x
A descriptive name that may be used to identify the device connected on that port.
Media Synopsis: { 100TX, 10FL, 100FX, 1000X, 1000T, 802.11g, EoVDSL, 100TX Only,
10FL/100SX, 10GX }
Default: 100TX
The type of the port media.
State Synopsis: { Disabled, Enabled }
Default: Enabled
Disabling a port will prevent all frames from being sent and received on that port. Also,
when disabled link integrity signal is not sent so that the link/activity LED will never be
lit. You may want to disable a port for troubleshooting or to secure it from unauthorized
connections.
NOTE
Disabling a port whose media type is set to 802.11g disables the
corresponding wireless module.
AutoN Synopsis: { Off, On }
Default: On
Enable or disable IEEE 802.3 auto-negotiation. Enabling auto-negotiation results in
speed and duplex being negotiated upon link detection; both end devices must be auto-
negotiation compliant for the best possible results. 10Mbps and 100Mbps fiber optic
media do not support auto-negotiation so these media must be explicitly configured to
either half or full duplex. Full duplex operation requires that both ends are configured as
such or else severe frame loss will occur during heavy network traffic.
Speed Synopsis: { Auto, 10M, 100M, 1G }
Default: Auto
Speed (in Megabit-per-second or Gigabit-per-second). If auto-negotiation is enabled, this
is the speed capability advertised by the auto-negotiation process. If auto-negotiation is
disabled, the port is explicitly forced to this speed mode.
AUTO means advertise all supported speed modes.
Dupx Synopsis: { Auto, Half, Full }
Default: Auto
Duplex mode. If auto-negotiation is enabled, this is the duplex capability advertised by
the auto-negotiation process. If auto-negotiation is disabled, the port is explicitly forced
to this duplex mode.
AUTO means advertise all supported duplex modes.
Flow Control Synopsis: { Off, On }
Default: On
Flow Control is useful for preventing frame loss during times of severe network traffic.
Examples of this include multiple source ports sending to a single destination port or a
higher speed port bursting to a lower speed port.
When the port is half-duplex it is accomplished using 'backpressure' where the switch
simulates collisions causing the sending device to retry transmissions according to the
Ethernet backoff algorithm.
When the port is full-duplex it is accomplished using PAUSE frames which causes the
sending device to stop transmitting for a certain period of time.
LFI Synopsis: { Off, On }
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Parameter Description
Default: Off
Enabling Link-Fault-Indication (LFI) inhibits transmitting link integrity signal when the
receive link has failed. This allows the device at far end to detect link failure under all
circumstances.
NOTE
This feature must not be enabled at both ends of a fiber link.
Alarm Synopsis: { On, Off }
Default: On
Disabling link state alarms will prevent alarms and LinkUp and LinkDown SNMP traps
from being sent for that port.
Act on LinkDown Synopsis: { Do nothing, Admin Disable }
Default: Do nothing
The action to be taken upon a port LinkDown event. Options include:
•Do nothing – No action is taken
•Admin Disable – The port state is disabled
NOTE
If one end of the link is fixed to a specific speed and duplex type and the peer auto-negotiates,
there is a strong possibility the link will either fail to raise, or raise with the wrong settings on
the auto-negotiating side. The auto-negotiating peer will fall back to half-duplex operation, even
when the fixed side is full duplex. Full-duplex operation requires that both ends are configured
as such or else severe frame loss will occur during heavy network traffic. At lower traffic volumes
the link may display few, if any, errors. As the traffic volume rises, the fixed negotiation side will
begin to experience dropped packets, while the auto-negotiating side will experience excessive
collisions. Ultimately, as traffic load approaches 100%, the link will become entirely unusable.
These problems can be avoided by always configuring ports to the appropriate fixed values.
4. Click Apply.
Section4.6.7
Configuring Port Rate Limiting
To configure port rate limiting, do the following:
1. Navigate to Ethernet Ports» Configure Port Rate Limiting. The Port Rate Limiting table appears.
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Figure28:Port Rate Limiting Table
2. Select an Ethernet port. The Port Rate Limiting form appears.
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Figure29:Port Rate Limiting Form
1.Port Box 2.Ingress Limit Box 3.Ingress Frames List 4.Egress Limit Box 5.Apply Button 6.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Port Synopsis: 1 to maximum port number
Default: 1
The port number as seen on the front plate silkscreen of the switch.
Ingress Limit Synopsis: 100 to 2000 or { Disabled }
Default: 2000
The rate after which received frames (of the type described by the ingress frames
parameter) will be discarded by the switch.
Ingress Frames Synopsis: { Broadcast }
Default: Broadcast
This parameter specifies the types of frames to be rate-limited on this port. It applies only
to received frames:
• Broadcast - only broadcast frames
Egress Limit Synopsis: { Broadcast, Multicast, Mcast&FloodUcast, All }">62 to 256000 Kbps or
{ Disabled }
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Parameter Description
Default: Disabled
The maximum rate at which the switch will transmit (multicast, broadcast and unicast)
frames on this port. The switch will discard frames in order to meet this rate if required.
4. Click Apply.
Section4.6.8
Configuring Port Mirroring
Port mirroring is a troubleshooting tool that copies, or mirrors, all traffic received or transmitted on a designated
port to a specified mirror port. If a protocol analyzer is attached to the target port, the traffic stream of valid
frames on any source port is made available for analysis.
IMPORTANT!
Select a target port that has a higher speed than the source port. Mirroring a 100 Mbps port onto a 10
Mbps port may result in an improperly mirrored stream.
IMPORTANT!
Frames will be dropped if the full-duplex rate of frames on the source port exceeds the transmission
speed of the target port. Since both transmitted and received frames on the source port are mirrored to
the target port, frames will be discarded if the sum traffic exceeds the target port’s transmission rate.
This problem reaches its extreme in the case where traffic on a 100 Mbps full-duplex port is mirrored
onto a 10 Mbps half-duplex port.
IMPORTANT!
Before configuring port mirroring, note the following:
• Traffic will be mirrored onto the target port irrespective of its VLAN membership. It could be the same
as or different from the source port's membership.
• Network management frames (such as RSTP) cannot be mirrored.
• Switch management frames generated by the switch (such as Telnet, HTTP, SNMP, etc.) cannot be
mirrored.
NOTE
Invalid frames received on the source port will not be mirrored. These include CRC errors, oversize and
undersize packets, fragments, jabbers, collisions, late collisions and dropped events.
To configure port mirroring, do the following:
1. Navigate to Ethernet Ports» Configure Port Mirroring. The Port Mirroring form appears.
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Figure30:Port Mirroring Form
1.Port Mirroring Options 2.Source Port Box 3.Source Direction Options 4.Target Port Box 5.Apply Button 6.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
Port Mirroring Synopsis: { Disabled, Enabled }
Default: Disabled
Enabling port mirroring causes all frames received and transmitted by the source port(s)
to be transmitted out of the target port.
Source Port Synopsis: Any combination of numbers valid for this parameter
The port(s) being monitored.
Source Direction Synopsis: Egress and Ingress, Egress Only
Default: Egress and Ingress
Specifies monitoring whether both egress and ingress traffics or only egress traffic of the
source port.
Target Port Synopsis: 1 to maximum port number
Default: 1
The port where a monitoring device should be connected.
3. Click Apply.
Section4.6.9
Configuring Link Detection
To configure link detection, do the following:
1. Navigate to Ethernet Ports» Configure Link Detection. The Link Detection form appears.
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Figure31:Link Detection Form
1.Fast Link Detection Box 2.Link Detection Time Box 3.Apply Button 4.Reload Button
2. Configure the following parameter(s) as required:
NOTE
When Fast Link Detection is enabled, the system prevents link state change processing from
consuming all available CPU resources. However, if Port Guard is not used, it is possible for almost
all available CPU time to be consumed by frequent link state changes, which could have a negative
impact on overall system responsiveness.
Parameter Description
Fast Link Detection Synopsis: { Off, On, On_withPortGuard }
Default: On_withPortGuard
This parameter provides protection against faulty end devices generating an improper
link integrity signal. When a faulty end device or a mis-matching fiber port is connected
to the unit, a large number of continuous link state changes could be reported in a short
period of time. These large number of bogus link state changes could render the system
unresponsive as most, if not all, of the system resources are used to process the link state
changes. This could in turn cause a serious network problem as the unit's RSTP process
may not be able to run, thus allowing network loop to form.
Three different settings are available for this parameter:
• ON_withPortGuard - This is the recommended setting. With this setting, an extended
period (~2 minutes) of excessive link state changes reported by a port will prompt Port
Guard feature to disable FAST LINK DETECTION on that port and raise an alarm. By
disabling FAST LINK DETECTION on the problematic port, excessive link state changes
can no longer consume substantial amount of system resources. However if FAST LINK
DETECTION is disabled, the port will need a longer time to detect a link failure. This
may result in a longer network recovery time of up to 2s. Once Port Guard disables
FAST LINK DETECTION of a particular port, user can re-enable FAST LINK DETECTION on
the port by clearing the alarm.
• ON - In certain special cases where a prolonged excessive link state changes constitute
a legitimate link operation, using this setting can prevent Port Guard from disabling
FAST LINK DETECTION on the port in question. If excessive link state changes persist
for more than 2 minutes, an alarm will be generated to warn user about the observed
bouncing link. If the excessive link state changes condition is resolved later on, the
alarm will be cleared automatically. Since this option does not disable FAST LINK
DETECTION, a persistent bouncing link could continue affect the system in terms of
response time. This setting should be used with caution.
• OFF - Turning this parameter OFF will disable FAST LINK DETECTION completely.
The switch will need a longer time to detect a link failure. This will result in a longer
network recovery time of up to 2s.
Link Detection Time Synopsis: 100 ms to 1000 ms
Default: 100 ms
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Parameter Description
The time that the link has to continuously stay up before the "link up" decision is made by
the device.
(The device performs de-bouncing of Ethernet link detection to avoid multiple responses
to an occasional link bouncing event, e.g. when a cable is shaking while being plugged-
in or unplugged).
3. Click Apply.
Section4.6.10
Detecting Cable Faults
Connectivity issues can sometimes be attributed to faults in Ethernet cables. To help detect cable faults, short
circuits, open cables or cables that are too long, RUGGEDCOM ROS includes a built-in cable diagnostics utility.
CONTENTS
•Section4.6.10.1, “Viewing Cable Diagnostics Results”
•Section4.6.10.2, “Performing Cable Diagnostics”
•Section4.6.10.3, “Clearing Cable Diagnostics”
•Section4.6.10.4, “Determining the Estimated Distance To Fault (DTF)”
Section4.6.10.1
Viewing Cable Diagnostics Results
To view the results of previous diagnostic tests, navigate to Ethernet Ports» Configure/View Cable Diagnostics
Parameters. The Cable Diagnostics Parameters table appears.
NOTE
For information about how to start a diagnostic test, refer to Section4.6.10.2, “Performing Cable
Diagnostics”.
Figure32:Cable Diagnostics Parameters Table
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This table displays the following information:
Parameter Description
Port Synopsis: 1 to maximum port number
The port number as seen on the front plate silkscreen of the switch.
State Synopsis: { Stopped, Started }
Control the start/stop of the cable diagnostics on the selected port. If a port does not support
cable diagnostics, State will be reported as N/A.
Runs Synopsis: 0 to 65535
The total number of times cable diagnostics to be performed on the selected port. If this
number is set to 0, cable diagnostics will be performed forever on the selected port.
Calib. Synopsis: -100.0 to 100.0 m
This calibration value can be used to adjust or calibrate the estimated distance to fault. User
can take following steps to calibrate the cable diagnostics estimated distance to fault:
• Pick a particular port which calibration is needed
• Connect an Ethernet cable with a known length (e.g. 50m) to the port
• DO NOT connect the other end of the cable to any link partner
• Run cable diagnostics a few times on the port. OPEN fault should be detected
• Find the average distance to the OPEN fault recorded in the log and compare it to the
known length of the cable. The difference can be used as the calibration value
• Enter the calibration value and run cable diagnostics a few more times
• The distance to OPEN fault should now be at similar distance as the cable length
• Distance to fault for the selected port is now calibrated
Good Synopsis: 0 to 65535
The number of times GOOD TERMINATION (no fault) is detected on the cable pairs of the
selected port.
Open Synopsis: 0 to 65535
The number of times OPEN is detected on the cable pairs of the selected port.
Short Synopsis: 0 to 65535
The number of times SHORT is detected on the cable pairs of the selected port.
Imped Synopsis: 0 to 65535
The number of times IMPEDANCE MISMATCH is detected on the cable pairs of the selected
port.
Pass /Fail /Total Synopsis: Any 19 characters
This field summarizes the results of the cable diagnostics performed so far.
Pass - number of times cable diagnostics successfully completed on the selected port.
Fail - number of times cable diagnostics failed to complete on the selected port.
Total - total number of times cable diagnostics have been attempted on the selected port.
NOTE
For each successful diagnostic test, the values for Good, Open, Short or Imped will increment based
on the number of cable pairs connected to the port. For a 100Base-T port, which has two cable pairs,
the number will increase by two. For a 1000Base-T port, which has four cable pairs, the number will
increase by four.
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60 Performing Cable Diagnostics
NOTE
When a cable fault is detected, an estimated distance-to-fault is calculated and recorded in the system
log. The log lists the cable pair, the fault that was detected, and the distance-to-fault value. For more
information about the system log, refer to Section4.5.1, “Viewing Local and System Logs”.
Section4.6.10.2
Performing Cable Diagnostics
To perform a cable diagnostic test on one or more Ethernet ports, do the following:
1. Connect a CAT-5 (or better quality) Ethernet cable to the selected Ethernet port.
IMPORTANT!
Both the selected Ethernet port and its partner port can be configured to run in Enabled mode
with auto-negotiation, or in Disabled mode. Other modes are not recommended, as they may
interfere with the cable diagnostics procedure.
2. Connect the other end of the cable to a similar network port. For example, connect a 100Base-T port to a
100Base-T port, or a 1000Base-T port to a 1000Base-T port.
3. In RUGGEDCOM ROS, navigate to Ethernet Ports» Configure/View Cable Diagnostics Parameters. The
Cable Diagnostics Parameters table appears.
Figure33:Cable Diagnostics Parameters Table
4. Select an Ethernet port. The Cable Diagnostics Parameters form appears.
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Figure34:Cable Diagnostics Parameters Form
1.Port Box 2.State Options 3.Runs Box 4.Calib. Box 5.Good Box 6.Open Box 7.Short Box 8.Imped Box 9.Pass/Fail/
Total Box 10.Apply Button 11.Reload Button
5. Under Runs, enter the number of consecutive diagnostic tests to perform. A value of 0 indicates the test will
run continuously until stopped by the user.
6. Under Calib., enter the estimated Distance To Fault (DTF) value. For information about how to determine the
DTF value, refer to Section4.6.10.4, “Determining the Estimated Distance To Fault (DTF)”.
7. Select Started.
IMPORTANT!
A diagnostic test can be stopped by selecting Stopped and clicking Apply. However, if the test is
stopped in the middle of a diagnostic run, the test will run to completion.
8. Click Apply. The state of the Ethernet port will automatically change to Stopped when the test is complete.
For information about how to monitor the test and view the results, refer to Section4.6.10.1, “Viewing Cable
Diagnostics Results”.
Section4.6.10.3
Clearing Cable Diagnostics
To clear the cable diagnostic results, do the following:
1. Navigate to Ethernet Ports» Clear Cable Diagnostics Statistics. The Clear Cable Diagnostics Statistics
form appears.
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Figure35:Clear Cable Diagnostics Statistics Form
1.Port Check Boxes 2.Apply Button
2. Select one or more Ethernet ports.
3. Click Apply.
Section4.6.10.4
Determining the Estimated Distance To Fault (DTF)
To determine the estimate Distance To Fault (DTF), do the following:
1. Connect a CAT-5 (or better quality) Ethernet cable with a known length to the device. Do not connect the
other end of the cable to another port.
2. Configure the cable diagnostic utility to run a few times on the selected Ethernet port and start the test. For
more information, refer to Section4.6.10.2, “Performing Cable Diagnostics”. Open faults should be detected
and recorded in the system log.
3. Review the errors recorded in the system log and determine the average distance of the open faults. For more
information about the system log, refer to Section4.5.1, “Viewing Local and System Logs”.
4. Subtract the average distance from the cable length to determine the calibration value.
5. Configure the cable diagnostic utility to run a few times with the new calibration value. The distance to the
open fault should now be the same as the actual length of the cable. The Distance To Fault (DTF) is now
calibrated for the selected Ethernet port.
Section4.6.11
Resetting Ethernet Ports
At times, it may be necessary to reset a specific Ethernet port, such as when the link partner has latched into an
inappropriate state. This is also useful for forcing a re-negotiation of the speed and duplex modes.
To reset a specific Ethernet port(s), do the following:
1. Navigate to Ethernet Ports» Reset Port(s). The Reset Port(s) form appears.
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Figure36:Reset Port(s) Form
1.Ports 2.Apply Button
2. Select one or more Ethernet ports to reset.
3. Click Apply. The selected Ethernet ports are reset.
Section4.7
Managing IP Interfaces
RUGGEDCOM ROS allows one IP interface to be configured for each subnet (or VLAN), up to a maximum of 64
interfaces. One of the interfaces must also be configured to be a management interface for certain IP services,
such as DHCP relay agent.
Each IP interface must be assigned an IP address. In the case of the management interface, the IP address type can
be either static, DHCP, BOOTP or dynamic. For all other interfaces, the IP address must be static.
CAUTION!
Configuration hazard – risk of communication disruption. Changing the ID for the management VLAN
will break any active Raw Socket TCP connections. If this occurs, reset all serial ports.
CONTENTS
•Section4.7.1, “Viewing a List of IP Interfaces”
•Section4.7.2, “Adding an IP Interface”
•Section4.7.3, “Deleting an IP Interface”
Section4.7.1
Viewing a List of IP Interfaces
To view a list of IP interfaces configured on the device, navigate to Administration» Configure IP Interfaces»
Configure IP Interfaces. The IP Interfaces table appears.
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Figure37:IP Interfaces Table
If IP interfaces have not been configured, add IP interfaces as needed. For more information, refer to
Section4.7.2, “Adding an IP Interface”.
Section4.7.2
Adding an IP Interface
To add an IP interface, do the following:
1. Navigate to Administration» Configure IP Interfaces. The IP Interfaces table appears.
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Figure38:IP Interfaces Table
1.InsertRecord
2. Click InsertRecord. The Switch IP Interfaces form appears.
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Figure39:IP Interfaces Form
1.Type Options 2.ID Box 3.Mgmt Options 4.IP Address Type Box 5.IP Address Box 6.Subnet Box 7.Apply Button
8.Delete Button 9.Reload Button
3. Configure the following parameter(s) as required:
NOTE
The IP address and mask configured for the management VLAN are not changed when resetting all
configuration parameters to defaults and will be assigned a default VLAN ID of 1. Changes to the
IP address take effect immediately. All IP connections in place at the time of an IP address change
will be lost.
Parameter Description
Type Synopsis: { VLAN }
Default: VLAN
Specifies the type of the interface for which this IP interface is created.
ID Synopsis: 1 to 4094
Default: 1
Specifies the ID of the interface for which this IP interface is created. If the interface type
is VLAN, this represents the VLAN ID.
Mgmt Synopsis: { No, Yes }
Default: No
Specifies whether the IP interface is the device management interface.
IP Address Type Synopsis: { Static, Dynamic, DHCP, BOOTP }
Default: Static
Specifies whether the IP address is static or is dynamically assigned via DHCP or BOOTP>.
The Dynamic option automatically switches between BOOTP and DHCP until it receives a
response from the relevant server. The Static option must be used for non-management
interfaces.
IP Address Synopsis: ###.###.###.### where ### ranges from 0 to 255
Default: 192.168.0.1
Specifies the IP address of this device. An IP address is a 32-bit number that is notated by
using four numbers from 0 through 255, separated by periods. Only a unicast IP address
is allowed, which ranges from 1.0.0.0 to 233.255.255.255.
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Parameter Description
Subnet Synopsis: ###.###.###.### where ### ranges from 0 to 255
Default: 255.255.255.0
Specifies the IP subnet mask of this device. An IP subnet mask is a 32-bit number that
is notated by using four numbers from 0 through 255, separated by periods. Typically,
subnet mask numbers use either 0 or 255 as values (e.g. 255.255.255.0) but other
numbers can appear.
IMPORTANT!
Each IP interface must have a unique network address.
4. Click Apply.
Section4.7.3
Deleting an IP Interface
To delete an IP interface configured on the device, do the following:
1. Navigate to Administration» Configure IP Interfaces. The IP Interfaces table appears.
Figure40:IP Interfaces Table
2. Select the IP interface from the table. The IP Interfaces form appears.
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Figure41:IP Interfaces Form
1.Type Options 2.ID Box 3.Mgmt Options 4.IP Address Type Box 5.IP Address Box 6.Subnet Box 7.Apply Button
8.Delete Button 9.Reload Button
3. Click Delete.
Section4.8
Managing IP Gateways
RUGGEDCOM ROS allows up to ten IP gateways to be configured. When both the Destination and Subnet
parameters are blank, the gateway is considered to be a default gateway.
NOTE
The default gateway configuration will not be changed when resetting all configuration parameters to
their factory defaults.
CONTENTS
•Section4.8.1, “Viewing a List of IP Gateways”
•Section4.8.2, “Adding an IP Gateway”
•Section4.8.3, “Deleting an IP Gateway”
Section4.8.1
Viewing a List of IP Gateways
To view a list of IP gateways configured on the device, navigate to Administration» Configure IP Gateways. The
IP Gateways table appears.
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Figure42:IP Gateways Table
If IP gateways have not been configured, add IP gateways as needed. For more information, refer to Section4.8.2,
“Adding an IP Gateway”.
Section4.8.2
Adding an IP Gateway
IMPORTANT!
DHCP-provided IP gateway addresses will override manually configured values.
To add an IP gateway, do the following:
1. Navigate to Administration» Configure IP Gateways. The IP Gateways table appears.
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Figure43:IP Gateways Table
1.InsertRecord
2. Click InsertRecord. The IP Gateways form appears.
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Figure44:IP Gateways
1.Destination Box 2.Subnet Prefix Box 3.Gateway Box 4.Apply Button 5.Delete Button 6.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Destination Synopsis: ###.###.###.### where ### ranges from 0 to 255
Specifies the IP address of destination network or host. For default gateway, both the
destination and subnet are 0.
Subnet Synopsis: ###.###.###.### where ### ranges from 0 to 255
Specifies the destination IP subnet mask. For default gateway, both the destination and
subnet are 0.
Gateway Synopsis: ###.###.###.### where ### ranges from 0 to 255
Specifies the gateway to be used to reach the destination.
4. Click Apply.
Section4.8.3
Deleting an IP Gateway
To delete an IP gateway configured on the device, do the following:
1. Navigate to Administration» Configure IP Gateways. The IP Gateways table appears.
Figure45:IP Gateways Table
2. Select the IP gateway from the table. The IP Gateways form appears.
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Figure46:IP Gateways Form
1.Destination Box 2.Subnet Box 3.Gateway Box 4.Apply Button 5.Delete Button 6.Reload Button
3. Click Delete.
Section4.9
Configuring IP Services
To configure the IP services provided by the device, do the following:
1. Navigate to Administration» Configure IP Services. The IP Services form appears.
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Figure47:IP Services Form
1.Inactivity Timeout Box 2.Telnet Sessions Allowed Box 3.Web Server Users Allowed Box 4.TFTP Server Box 5.Modbus Address
Box 6.SSH Sessions Allowed Box 7.RSH Server Options 8.IP Forward Options 9.Max Failed Attempts Box 10.Failed Attempts
Window Box 11.Lockout Time Box 12.Apply Button 13.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
Inactivity Timeout Synopsis: 1 to 60 or { Disabled }
Default: 5 min
Specifies when the console will timeout and display the login screen if there is no user
activity. A value of zero disables timeouts. For Web Server users maximum timeout value
is limited to 30 minutes.
Telnet Sessions Allowed Synopsis: 1 to 4 or { Disabled }
Default: Disabled
Limits the number of Telnet sessions. A value of zero prevents any Telnet access.
Web Server Users Allowed Synopsis: 1 to 4 or { Disabled }
Default: 4
Limits the number of simultaneous web server users.
TFTP Server Synopsis: { Disabled, Get Only, Enabled }
Default: Disabled
As TFTP is a very insecure protocol, this parameter allows user to limit or disable TFTP
Server access..
DISABLED - disables read and write access to TFTP Server
GET ONLY - only allows reading of files via TFTP Server
ENABLED - allows reading and writing of files via TFTP Server
ModBus Address Synopsis: 1 to 255 or { Disabled }
Default: Disabled
Determines the Modbus address to be used for Management through Modbus.
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Parameter Description
SSH Sessions Allowed (Controlled Version
Only)
Synopsis: 1 to 4
Default: 4
Limits the number of SSH sessions.
RSH Server Synopsis: { Disabled, Enabled }
Default: Disabled (controlled version) or Enabled (non-controlled version)
Disables/enables Remote Shell access.
IP Forward Synopsis: { Disabled, Enabled }
Controls the ability of IP Forwarding between VLANs in Serial Server or IP segments.
NOTE
When upgrading to ROS v4.3, the default will be set to { Enabled }.
Max Failed Attempts Synopsis: 1 to 20
Default: 10
Maximum number of consecutive failed access attempts on service within Failed
Attempts Window before blocking the service.
Failed Attempts Window Synopsis: 1 to 30 min
Default: 5 min
The time in minutes (min) in which the maximum number of failed login attempts must
be exceeded before a service is blocked. The counter of failed attempts resets to 0 when
the timer expires.
Lockout Time Synopsis: 1 to 120 min
Default: 60 min
The time in minutes (min) the service remains locked out after the maximum number of
failed access attempts has been reached.
3. Click Apply.
Section4.10
Managing Remote Monitoring
Remote Monitoring (RMON) is used to collect and view historical statistics related to the performance and
operation of Ethernet ports. It can also record a log entry and/or generate an SNMP trap when the rate of
occurrence of a specified event is exceeded.
CONTENTS
•Section4.10.1, “Managing RMON History Controls”
•Section4.10.2, “Managing RMON Alarms”
•Section4.10.3, “Managing RMON Events”
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Section4.10.1
Managing RMON History Controls
The history controls for Remote Monitoring take samples of the RMON-MIB history statistics of an Ethernet port at
regular intervals.
CONTENTS
•Section4.10.1.1, “Viewing a List of RMON History Controls”
•Section4.10.1.2, “Adding an RMON History Control”
•Section4.10.1.3, “Deleting an RMON History Control”
Section4.10.1.1
Viewing a List of RMON History Controls
To view a list of RMON history controls, navigate to Ethernet Stats» Configure RMON History Controls. The
RMON History Controls table appears.
Figure48:RMON History Controls Table
If history controls have not been configured, add controls as needed. For more information, refer to
Section4.10.1.2, “Adding an RMON History Control”.
Section4.10.1.2
Adding an RMON History Control
To add an RMON history control, do the following:
1. Navigate to Ethernet Stats» Configure RMON History Controls. The RMON History Controls table appears.
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Figure49:RMON History Controls Table
1.InsertRecord
2. Click InsertRecord. The RMON History Controls form appears.
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Figure50:RMON History Controls Form
1.Index Box 2.Port Box 3.Requested Buckets Box 4.Granted Buckets Box 5.Interval Box 6.Owner Box 7.Apply Button
8.Delete Button 9.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Index Synopsis: 1 to 65535
Default: 1
The index of this RMON History Contol record.
Port Synopsis: 1 to maximum port number
Default: 1
The port number as seen on the front plate silkscreen of the switch.
Requested Buckets Synopsis: 1 to 4000
Default: 50
The maximum number of buckets requested for this RMON collection history group of
statistics. The range is 1 to 4000. The default is 50.
Granted Buckets Synopsis: 0 to 65535
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Parameter Description
The number of buckets granted for this RMON collection history. This field is not
editable.
Interval Synopsis: 1 to 3600
Default: 1800
The number of seconds in over which the data is sampled for each bucket. The range is 1
to 3600. The default is 1800.
Owner Synopsis: Any 127 characters
Default: Monitor
The owner of this record. It is suggested to start this string withword 'monitor'.
4. Click Apply.
Section4.10.1.3
Deleting an RMON History Control
To delete an RMON history control, do the following:
1. Navigate to Ethernet Stats» Configure RMON History Controls. The RMON History Controls table appears.
Figure51:RMON History Controls Table
2. Select the history control from the table. The RMON History Controls form appears.
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Figure52:RMON History Controls Form
1.Index Box 2.Port Box 3.Requested Buckets Box 4.Granted Buckets Box 5.Interval Box 6.Owner Box 7.Apply Button
8.Delete Button 9.Reload Button
3. Click Delete.
Section4.10.2
Managing RMON Alarms
When Remote Monitoring (RMON) alarms are configured, RUGGEDCOM ROS examines the state of a specific
statistical variable.
Remote Monitoring (RMON) alarms define upper and lower thresholds for legal values of specific statistical
variables in a given interval. This allows RUGGEDCOM ROS to detect events as they occur more quickly than a
specified maximum rate or less quckly than a minimum rate.
When the rate of change for a statistics value exceeds its limits, an internal INFO alarm is always generated. For
information about viewing alarms, refer to Section5.4.2, “Viewing and Clearing Latched Alarms”.
Additionally, a statistic threshold crossing can result in further activity. An RMON alarm can be configured to point
to a particular RMON event, which can generate an SNMP trap, an entry in the event log, or both. The RMON event
can also direct alarms towards different users defined for SNMP.
The alarm can point to a different event for each of the thresholds. Therefore, combinations such as trap on rising
threshold or trap on rising threshold, log and trap on falling threshold are possible.
Each RMON alarm may be configured such that its first instance occurs only for rising, falling, or all thresholds that
exceed their limits.
The ability to configure upper and lower thresholds on the value of a measured statistic provides for the ability to
add hysteresis to the alarm generation process.
If the value of the measured statistic over time is compared to a single threshold, alarms will be generated each
time the statistic crosses the threshold. If the statistic’s value fluctuates around the threshold, an alarm can be
generated every measurement period. Programming different upper and lower thresholds eliminates spurious
alarms. The statistic value must travel between the thresholds before alarms can be generated. The following
illustrates the very different patterns of alarm generation resulting from a statistic sample and the same sample
with hysteresis applied.
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Viewing a List of RMON Alarms 77
Figure53:The Alarm Process
There are two methods to evaluate a statistic to determine when to generate an event: delta and absolute.
For most statistics, such as line errors, it is appropriate to generate an alarm when a rate is exceeded. The
alarm defaults to the delta measurement method, which examines changes in a statistic at the end of each
measurement period.
It may be desirable to alarm when the total, or absolute, number of events crosses a threshold. In this case, set the
measurement period type to absolute.
CONTENTS
•Section4.10.2.1, “Viewing a List of RMON Alarms”
•Section4.10.2.2, “Adding an RMON Alarm”
•Section4.10.2.3, “Deleting an RMON Alarm”
Section4.10.2.1
Viewing a List of RMON Alarms
To view a list of RMON alarms, navigate to Ethernet Stats» Configure RMON Alarms. The RMON Alarms table
appears.
Figure54:RMON Alarms Table
If alarms have not been configured, add alarms as needed. For more information, refer to Section4.10.2.2,
“Adding an RMON Alarm”.
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78 Adding an RMON Alarm
Section4.10.2.2
Adding an RMON Alarm
To add an RMON alarm, do the following:
1. Navigate to Ethernet Stats» Configure RMON Alarms. The RMON Alarms table appears.
1
Figure55:RMON Alarms Table
1.InsertRecord
2. Click InsertRecord. The RMON Alarms form appears.
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Figure56:RMON Alarms Form
1.Index Box 2.Variable Box 3.Rising Thr Box 4.Falling Thr Box 5.Value Box 6.Type Options 7.Interval Box 8.Startup
Alarm List 9.Rising Event Box 10.Falling Event Box 11.Owner Box 12.Apply Button 13.Delete Button 14.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Index Synopsis: 1 to 65535
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Parameter Description
Default: 1
The index of this RMON Alarm record.
Variable Synopsis: SNMP Object Identifier - up to 39 characters
The SNMP object identifier (OID) of the particular variable to be sampled. Only variables
that resolve to an ASN.1 primitive type INTEGER (INTEGER, Integer32,Counter32,
Counter64, Gauge, or TimeTicks) may be sampled. A list of objects can be printed using
shell command 'rmon'. The OID format: objectName.index1.index2... where index format
depends on index object type.
Rising Thr Synopsis: -2147483647 to 2147483647
Default: 0
A threshold for the sampled variable. When the current sampled variable value is greater
than or equal to this threshold, and the value at the last sampling interval was less than
this threshold, a single event will be generated. A single event will also be generated if
the first sample after this record is created is greater than or equal to this threshold and
the associated startup alarm ils equal to 'rising'.After rising alarm is generated, another
such event will not be generated until the sampled value falls below this threshold and
reaches the value of FallingThreshold.
Falling Thr Synopsis: -2147483647 to 2147483647
Default: 0
A threshold for the sampled variable. When the current sampled variable value is
less than or equal to this threshold, and the value at the last sampling interval was
greater than this threshold, a single event will be generated. A single event will also
be generated if the first sample after this record is created is less than or equal to this
threshold and the associated startup alarm ils equal to 'falling'.After falling alarm is
generated, another such event will not be generated until the sampled value rises above
this threshold and reaches the value of RisingThreshold.
Value Synopsis: -2147483647 to 2147483647
The value of monitoring object during the last sampling period. The presentation of
value depends of sample type ('absolute' or 'delta').
Type Synopsis: { absolute, delta }
Default: delta
The method of sampling the selected variable and calculating the value to be compared
against the thresholds. The value of sample type can be 'absolute' or 'delta'.
Interval Synopsis: 0 to 2147483647
Default: 60
The number of seconds in over which the data is sampled and compared with the rising
and falling thresholds.
Startup Alarm Synopsis: { rising, falling, risingOrFalling }
Default: risingOrFalling
The alarm that may be sent when this record is first created if condition for raising alarm
is met. The value of startup alarm can be 'rising', 'falling' or 'risingOrFalling'.
Rising Event Synopsis: 0 to 65535
Default: 0
The index of the event that is used when a falling threshold is crossed. If there is no
corresponding entryl in the Event Table, then no association exists. In particular, if this
value is zero, no associated event will be generated.
Falling Event Synopsis: 0 to 65535
Default: 0
The index of the event that is used when a rising threshold is crossed. If there is no
corresponding entryl in the Event Table, then no association exists. In particular, if this
value is zero, no associated event will be generated.
Owner Synopsis: Any 127 characters
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Parameter Description
Default: Monitor
The owner of this record. It is suggested to start this string withword 'monitor'.
4. Click Apply.
Section4.10.2.3
Deleting an RMON Alarm
To delete an RMON alarm, do the following:
1. Navigate to Ethernet Stats» Configure RMON Alarms. The RMON Alarms table appears.
Figure57:RMON Alarms Table
2. Select the alarm from the table. The RMON Alarms form appears.
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Figure58:RMON Alarms Form
1.Index Box 2.Variable Box 3.Rising Thr Box 4.Falling Thr Box 5.Value Box 6.Type Options 7.Interval Box 8.Startup
Alarm List 9.Rising Event Box 10.Falling Event Box 11.Owner Box 12.Apply Button 13.Delete Button 14.Reload Button
3. Click Delete.
Section4.10.3
Managing RMON Events
Remote Monitoring (RMON) events define behavior profiles used in event logging. These profiles are used by
RMON alarms to send traps and log events.
Each alarm may specify that a log entry be created on its behalf whenever the event occurs. Each entry may also
specify that a notification should occur by way of SNMP trap messages. In this case, the user for the trap message
is specified as the Community.
Two traps are defined: risingAlarm and fallingAlarm.
CONTENTS
•Section4.10.3.1, “Viewing a List of RMON Events”
•Section4.10.3.2, “Adding an RMON Event”
•Section4.10.3.3, “Deleting an RMON Event”
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82 Viewing a List of RMON Events
Section4.10.3.1
Viewing a List of RMON Events
To view a list of RMON events, navigate to Ethernet Stats» Configure RMON Events. The RMON Events table
appears.
Figure59:RMON Events Table
If events have not been configured, add events as needed. For more information, refer to Section4.10.3.2,
“Adding an RMON Event”.
Section4.10.3.2
Adding an RMON Event
To add an RMON alarm, do the following:
1. Navigate to Ethernet Stats» Configure RMON Events. The RMON Events table appears.
1
Figure60:RMON Events Table
1.InsertRecord
2. Click InsertRecord. The RMON Events form appears.
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Figure61:RMON Events Form
1.Index Box 2.Type List 3.Community Box 4.Last Time Sent Box 5.Description Box 6.Owner Box 7.Apply Button
8.Delete Button 9.View Button 10.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Index Synopsis: 1 to 65535
Default: 3
The index of this RMON Event record.
Type Synopsis: { none, log, snmpTrap, logAndTrap }
Default: logAndTrap
The type of notification that the probe will make about this event. In the case of 'log', an
entry is made in the RMON Log table for each event. In the case of snmp_trap, an SNMP
trap is sent to one or more management stations.
Community Synopsis: Any 31 characters
Default: public
If the SNMP trap is to be sent, it will be sent to the SNMP community specified by this
string.
Last Time Sent Synopsis: DDDD days, HH:MM:SS
The time from last reboot at the time this event entry last generated an event. If this
entry has not generated any events, this value will be 0.
Description Synopsis: Any 127 characters
Default: EV2-Rise
A comment describing this event.
Owner Synopsis: Any 127 characters
Default: Monitor
The owner of this event record. It is suggested to start this string withword 'monitor'.
4. Click Apply.
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84 Deleting an RMON Event
Section4.10.3.3
Deleting an RMON Event
To delete an RMON event, do the following:
1. Navigate to Ethernet Stats» Configure RMON Events. The RMON Events table appears.
Figure62:RMON Events Table
2. Select the event from the table. The RMON Events form appears.
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Figure63:RMON Events Form
1.Index Box 2.Type List 3.Community Box 4.Last Time Sent Box 5.Description Box 6.Owner Box 7.Apply Button
8.Delete Button 9.View Button 10.Reload Button
3. Click Delete.
Section4.11
Upgrading/Downgrading Firmware
This section describes how to upgrade and downgrade the firmware for RUGGEDCOM ROS.
CONTENTS
•Section4.11.1, “Upgrading Firmware”
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Upgrading Firmware 85
•Section4.11.2, “Downgrading Firmware”
Section4.11.1
Upgrading Firmware
Upgrading RUGGEDCOM ROS firmware, including the main, bootloader and FPGA firmware, may be necessary
to take advantage of new features or bug fixes. Binary firmware releases, including updates, can be obtained by
submitting a Support Request via the Siemens Industry Online Support [https://support.industry.siemens.com]
website. For more information, refer to https://support.industry.siemens.com/My/ww/en/requests.
Binary firmware images transferred to the device are stored in non-volatile Flash memory and require a device
reset to take effect.
NOTE
The IP address set for the device will not be changed following a firmware upgrade.
To upgrade the RUGGEDCOM ROS firmware, do the following:
1. Upload a different version of the binary firmware image to the device. For more information, refer to
Section4.4, “Uploading/Downloading Files”.
2. Reset the device to complete the installation. For more information, refer to Section4.12, “Resetting the
Device”.
3. Access the CLI shell and verify the new software version has been installed by typing version. The currently
installed versions of the main and boot firmware are displayed.
>version
Current ROS-CF52 Boot Software v2.20.0 (Jan 01 4.3 00:01)
Current ROS-CF52 Main Software v4.3.0 (Jan 01 4.3 00:01)
Section4.11.2
Downgrading Firmware
Downgrading the RUGGEDCOM ROS firmware is generally not recommended, as it may have unpredictable
effects. However, if a downgrade is required, do the following:
IMPORTANT!
Before downgrading the firmware, make sure the hardware and FPGA code types installed in the
device are supported by the older firmware version. Refer to the Release Notes for the older firmware
version to confirm.
CAUTION!
Do not downgrade the RUGGEDCOM ROS boot version.
1. Disconnect the device from the network.
2. Log in to the device as an admin user. For more information, refer to Section2.1, “Logging In”.
3. Make a local copy of the current configuration file. For more information, refer to Section4.4, “Uploading/
Downloading Files”.
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IMPORTANT!
Never downgrade the firmware with encryption enabled to a version that does not support
encryption.
4. Restore the device to its factory defaults. For more information, refer to Section4.3, “Restoring Factory
Defaults”.
5. Upload and apply the older firmware version and its associated FPGA files using the same methods used to
install newer firmware versions. For more information , refer to Section4.11.1, “Upgrading Firmware”.
6. Press Ctrl-S to access the CLI.
7. Clear all logs by typing:
clearlogs
8. Clear all alarms by typing:
clearalarms
IMPORTANT!
After downgrading the firmware and FPGA files, be aware that some settings from the previous
configuration may be lost or reverted back to the factory defaults (including user passwords if
downgrading from a security related version), as those particular tables or fields may not exist in
the older firmware version. Because of this, the unit must be configured after the downgrade.
9. Configure the device as required.
Section4.12
Resetting the Device
To reset the device, do the following:
1. Navigate to Diagnostics» Reset Device. The Reset Device form appears.
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Figure64:Reset Device Form
1.Confirm Button
2. Click Confirm.
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Decommissioning the Device 87
Section4.13
Decommissioning the Device
Before taking the device out of service, either permanently or for maintenance by a third-party, make sure the
device has been fully decommissioned. This includes removing any sensitive, proprietary information.
To decommission the device, do the following:
1. Disconnect all network cables from the device.
2. Connect to the device via the RS-232 serial console port. For more information, refer to Section3.1.2,
“Connecting Directly”.
3. Restore all factory default settings for the device. For more information, refer to Section4.3, “Restoring
Factory Defaults”.
4. Access the CLI. For more information, refer to Section2.5, “Using the Command Line Interface”.
5. Upload a blank version of the banner.txt file to the device to replace the existing file. For more information
about uploading a file, refer to Section4.4, “Uploading/Downloading Files”.
6. Confirm the upload was successful by typing:
type banner.txt
7. Clear the system and crash logs by typing:
clearlog
8. Generate a random SSL certificate by typing:
sslkeygen
This may take several minutes to complete. To verify the certificate has been generated, type:
type syslog.txt
When the phrase
Generated ssl.crt was saved
appears in the log, the SSL certificate has been generated.
9. Generate random SSH keys by typing:
sshkeygen
This may take several minutes to complete. To verify the keys have been generated, type:
type syslog.txt
When the phrase
Generated ssh.keys was saved
appears in the log, the SSH keys have been generated.
10. De-fragment and erase all free flash memory by typing:
flashfile defrag
This may take several minutes to complete.
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Configuring the System Information 89
System Administration
This chapter describes how to perform various administrative tasks related to device identification, user
permissions, alarm configuration, certificates and keys, and more.
CONTENTS
•Section5.1, “Configuring the System Information”
•Section5.2, “Customizing the Login Screen”
•Section5.3, “Enabling/Disabling the Web Interface”
•Section5.4, “Managing Alarms”
•Section5.5, “Managing the Configuration File”
Section5.1
Configuring the System Information
To configure basic information that can be used to identify the device, its location, and/or its owner, do the
following:
1. Navigate to Administration» Configure System Identification. The System Identification form appears.
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Figure65:System Identification Form
1.System Name Box 2.Location Box 3.Contact Box 4.Apply Button 5.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
System Name Synopsis: Any 24 characters
The system name is displayed in all RUGGEDCOM ROS menu screens. This can make it
easier to identify the switches within your network provided that all switches are given a
unique name.
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Parameter Description
Location Synopsis: Any 49 characters
The location can be used to indicate the physical location of the switch. It is displayed in
the login screen as another means to ensure you are dealing with the desired switch.
Contact Synopsis: Any 49 characters
The contact can be used to help identify the person responsible for managing the switch.
You can enter name, phone number, email, etc. It is displayed in the login screen so that
this person may be contacted should help be required.
3. Click Apply.
Section5.2
Customizing the Login Screen
To display a custom welcome message, device information or any other information on the login screen for the
Web and console interfaces, add text to the banner.txt file stored on the device.
If the banner.txt file is empty, only the Username and Password fields appear on the login screen.
To update the banner.txt file, download the file from the device, modify it and then load it back on to the
device. For information about uploading and downloading files, refer to Section4.4, “Uploading/Downloading
Files”.
Section5.3
Enabling/Disabling the Web Interface
In some cases, users may want to disable the Web interface to increase cyber security.
To disable or enable the Web interface, do the following:
NOTE
The Web interface can be disabled via the Web UI by configuring the Web Server Users Allowed
parameter in the IP Services form. For more information, refer to Section4.9, “Configuring IP Services”.
1. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
2. Navigate to Administration» Configure IP Services» Web Server Users Allowed.
3. Select Disabled to disable the Web interface, or select the desired number of Web server users allowed to
enable the interface.
Section5.4
Managing Alarms
Alarms indicate the occurrence of events of either importance or interest that are logged by the device.
There are two types of alarms:
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Viewing a List of Pre-Configured Alarms 91
•Active alarms signify states of operation that are not in accordance with normal operation. Examples include
links that should be up, but are not, or error rates that repeatedly exceed a certain threshold. These alarms are
continuously active and are only cleared when the problem that triggered the alarms is resolved.
•Passive alarms are a record of abnormal conditions that occurred in the past and do not affect the current
operation state of the device. Examples include authentication failures, Remote Network MONitoring (RMON)
MIB generated alarms, or error states that temporarily exceeded a certain threshold . These alarms can be
cleared from the list of alarms.
NOTE
For more information about RMON alarms, refer to Section4.10.2, “Managing RMON Alarms”.
When either type of alarm occurs, a message appears in the top right corner of the user interface. If more than
one alarm has occurred, the message will indicate the number of alarms. Active alarms also trip the Critical Failure
Relay LED on the device. The message and the LED will remain active until the alarm is cleared.
NOTE
Alarms are volatile in nature. All alarms (active and passive) are cleared at startup.
CONTENTS
•Section5.4.1, “Viewing a List of Pre-Configured Alarms”
•Section5.4.2, “Viewing and Clearing Latched Alarms”
•Section5.4.3, “Configuring an Alarm”
•Section5.4.4, “Authentication Related Security Alarms”
Section5.4.1
Viewing a List of Pre-Configured Alarms
To view a list of alarms pre-configured for the device, navigate to Diagnostic» Configure Alarms. The Alarms
table appears.
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92 Viewing and Clearing Latched Alarms
Figure66:Alarms Table
NOTE
This list of alarms (configurable and non-configurable) is accessible through the Command Line
Interface (CLI) using the alarms. For more information, refer to Section2.5.1, “Available CLI
Commands”.
For information about modifying a pre-configured alarm, refer to Section5.4.3, “Configuring an Alarm”.
Section5.4.2
Viewing and Clearing Latched Alarms
To view a list of alarms that are configured to latch, navigate to Diagnostics» View Latched Alarms. The
Latched Alarms table appears.
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Configuring an Alarm 93
Figure67:Latched Alarms Table
To clear the passive alarms from the list, do the following:
1. Navigate to Diagnostics» Clear Latched Alarms. The Clear Latched Alarms form appears.
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Figure68:Clear Latched Alarms Form
1.Confirm Button
2. Click Confirm.
Section5.4.3
Configuring an Alarm
While all alarms are pre-configured on the device, some alarms can be modified to suit the application. This
includes enabling/disabling certain features and changing the refresh time.
To configuring an alarm, do the following:
IMPORTANT!
Critical and Alert level alarms are not configurable and cannot be disabled.
1. Navigate to Diagnostic» Configure Alarms. The Alarms table appears.
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Figure69:Alarms Table
2. Select an alarm. The Alarms form appears.
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Figure70:Alarms Form
1.Name Box 2.Level Box 3.Latch Box 4.Trap Box 5.Log Box 6.LED & Relay Box 7.Refresh Time Box 8.Apply Button
9.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Name Synopsis: Any 34 characters
Default: sys_alarm
The alarm name, as obtained through the alarms CLI command.
Level Synopsis: { EMRG, ALRT, CRIT, ERRO, WARN, NOTE, INFO, DEBG }
Severity level of the alarm:
• EMERG - The device has had a serious failure that caused a system reboot.
• ALERT - The device has had a serious failure that did not cause a system reboot.
• CRITICAL - The device has a serious unrecoverable problem.
• ERROR - The device has a recoverable problem that does not seriously affect operation.
• WARNING - Possibly serious problem affecting overall system operation.
• NOTIFY - Condition detected that is not expected or not allowed.
• INFO - Event which is a part of normal operation, e.g. cold start, user login etc.
• DEBUG - Intended for factory troubleshooting only.
This parameter is not configurable.
Latch Synopsis: { On, Off }
Default: Off
Enables latching occurrence of this alarm in the Alarms Table.
Trap Synopsis: { On, Off }
Default: Off
Enables sending an SNMP trap for this alarm.
Log Synopsis: { On, Off }
Default: Off
Enables logging the occurrence of this alarm in syslog.txt.
LED & Relay Synopsis: { On, Off }
Default: Off
Enables LED and fail-safe relay control for this alarm. If latching is not enabled, this field
will remain disabled.
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Parameter Description
Refresh Time Synopsis: 0 s to 60 s
Default: 60 s
Refreshing time for this alarm.
4. Click Apply.
Section5.4.4
Authentication Related Security Alarms
This section describes the authentication-related security messages that can be generated by RUGGEDCOM ROS.
CONTENTS
•Section5.4.4.1, “Security Alarms for Login Authentication”
•Section5.4.4.2, “Security Messages for Port Authentication”
Section5.4.4.1
Security Alarms for Login Authentication
RUGGEDCOM ROS provides various logging options related to login authentication. A user can log into a
RUGGEDCOM ROS device via four different methods: Web, console, SSH or Telnet. RUGGEDCOM ROS can log
messages in the syslog, send a trap to notify an SNMP manager, and/or raise an alarm when a successful and
unsuccessful login event occurs. In addition, when a weak password is configured on a unit or when the primary
authentication server for TACACS+ or RADIUS is not reachable, RUGGEDCOM ROS will raise alarms, send SNMP
traps and log messages in the syslog.
The following is a list of log and alarm messages related to user authentication:
• Weak Password Configured
• Login and Logout Information
• Excessive Failed Login Attempts
• RADIUS Server Unreachable
• TACACS Server Unreachable
• TACACS Response Invalid
• SNMP Authentication Failure
NOTE
All alarms and log messages related to login authentication are configurable. For more information
about configuring alarms, refer to Section5.4.3, “Configuring an Alarm”.
Weak Password Configured
RUGGEDCOM ROS generates this alarm and logs a message in the syslog when a weak password is configured in
the Passwords table.
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Message Name Alarm SNMP Trap Syslog
Weak Password Configured Yes Yes Yes
Default Keys In Use
RUGGEDCOM ROS generates this alarm and logs a message in the syslog when default keys are in use. For more
information about default keys, refer to Section6.5, “Managing SSH and SSL Keys and Certificates”.
NOTE
For Non-Controlled (NC) versions of RUGGEDCOM ROS, this alarm is only generated when default SSL
keys are in use.
Message Name Alarm SNMP Trap Syslog
Default Keys In Use Yes Yes Yes
Login and Logout Information
RUGGEDCOM ROS generates this alarm and logs a message in the syslog when a successful and unsuccessful login
attempt occurs. A message is also logged in the syslog when a user with a certain privilege level is logged out
from the device.
Login attempts are logged regardless of how the user accesses the device (i.e. SSH, Web, Console, Telnet or RSH).
However, when a user logs out, a message is only logged when the user is accessing the device through SSH,
Telnet or Console.
Message Name Alarm SNMP Trap Syslog
Successful Login Yes Yes Yes
Failed Login Yes Yes Yes
User Logout No No Yes
Excessive Failed Login Attempts
RUGGEDCOM ROS generates this alarm and logs a message in the syslog after 10 failed login attempts by a user
occur within a span of five minutes. Furthermore, the service the user attempted to access will be blocked for one
hour to prevent further attempts.
Message Name Alarm SNMP Trap Syslog
Excessive Failed Login Attempts Yes Yes Yes
RADIUS Server Unreachable
RUGGEDCOM ROS generates this alarm and logs a message in the syslog when the primary RADIUS server is
unreachable.
Message Name Alarm SNMP Trap Syslog
Primary RADIUS Server
Unreachable
Yes Yes Yes
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TACACS+ Server Unreachable
RUGGEDCOM ROS generates this alarm and logs a message in the syslog when the primary TACACS+ server is
unreachable.
Message Name Alarm SNMP Trap Syslog
Primary TACACS Server
Unreachable
Yes Yes Yes
TACACS+ Response Invalid
RUGGEDCOM ROS generate this alarm and logs a message in the syslog when the response from the TACACS+
server is received with an invalid CRC.
Message Name Alarm SNMP Trap Syslog
TACACS Response Invalid Yes Yes Yes
SNMP Authentication Failure
RUGGEDCOM ROS generates this alarm, sends an authentication failure trap, and logs a message in the syslog
when an SNMP manager with incorrect credentials communicates with the SNMP agent in RUGGEDCOM ROS.
Message Name Alarm SNMP Trap Syslog
SNMP Authentication Failure Yes Yes Yes
Section5.4.4.2
Security Messages for Port Authentication
The following is the list of log and alarm messages related to port access control in RUGGEDCOM ROS:
• MAC Address Authorization Failure
• Secure Port X Learned MAC Addr on VLAN X
• Port Security Violated
MAC Address Authorization Failure
RUGGEDCOM ROS generates this alarm and logs a message in the syslog when a host connected to a secure port
on the device is communicating using a source MAC address which has not been authorized by RUGGEDCOM
ROS, or the dynamically learned MAC address has exceeded the total number of MAC addresses configured to be
learned dynamically on the secured port. This message is only applicable when the port security mode is set to
Static MAC.
Message Name Alarm SNMP Trap Syslog
MAC Address Authorization
Failure
Yes Yes Yes
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Secure Port X Learned MAC Addr on VLAN X
RUGGEDCOM ROS logs a message in the syslog and sends a configuration change trap when a MAC address is
learned on a secure port. Port X indicates the secured port number and VLAN number on that port. This message is
not configurable in RUGGEDCOM ROS.
Message Name SNMP Trap Syslog
Secure Port X Learned MAC Addr on VLAN X Yes Yes
Port Security Violated
This message is only applicable when the security mode for a port is set to "802.1X or 802.1X/MAC-Auth"
RUGGEDCOM ROS this alarm and logs a message in the syslog when the host connected to a secure port tries to
communicate using incorrect login credentials.
Message Name Alarm SNMP Trap Syslog
802.1X Port X Authentication
Failure
Yes Yes Yes
802.1X Port X Authorized Addr.
XXX
No No Yes
Section5.5
Managing the Configuration File
The device configuration file for RUGGEDCOM ROS is a single CSV (Comma-Separate Value) formatted ASCII text
file, named config.csv. It can be downloaded from the device to view, compare against other configuration
files, or store for backup purposes. It can also be overwritten by a complete or partial configuration file uploaded
to the device.
To prevent unauthorized access to the contents of the configuration file, the file can be encrypted and given a
password/passphrase key.
CONTENTS
•Section5.5.1, “Configuring Data Encryption”
•Section5.5.2, “Updating the Configuration File”
Section5.5.1
Configuring Data Encryption
To encrypt the configuration file and protect it with a password/passphrase, do the following:
NOTE
Data encryption is not available in Non-Controlled (NC) versions of RUGGEDCOM ROS. When switching
between Controlled and Non-Controlled (NC) versions of RUGGEDCOM ROS, make sure data encryption
is disabled. Otherwise, the NC version of RUGGEDCOM ROS will ignore the encrypted configuration file
and load the factory defaults.
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NOTE
Only configuration data is encrypted. All comments and table names in the configuration file are saved
as clear text.
NOTE
When sharing a configuration file between devices, make sure both devices have the same passphrase
configured. Otherwise, the configuration file will be rejected.
NOTE
Encryption must be disabled before the device is returned to Siemens or the configuration file is shared
with Customer Support.
IMPORTANT!
Never downgrade the RUGGEDCOM ROS software version beyond RUGGEDCOM ROS v4.3 when
encryption is enabled. Make sure the device has been restored to factory defaults before downgrading.
1. Navigate to Administration» Configure Data Storage. The Data Storage form appears.
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Figure71:Data Storage Form
1.Encryption Options 2.Passphrase Box 3.Confirm Passphrase Box 4.Apply Button 5.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
Encryption Synopsis: { On, Off }
Enable/disable encryption of data in configuration file.
Passphrase Synopsis: 31 character ascii string
This passphrase is used as a secret key to encrypt the configuration data.
Encrypted data can be decrypted by any device configured with the same passphrase.
Confirm Passphrase Synopsis: 31 character ascii string
This passphrase is used as a secret key to encrypt the configuration data.
Encrypted data can be decrypted by any device configured with the same passphrase.
3. Click Apply.
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Section5.5.2
Updating the Configuration File
Once downloaded from the device, the configuration file can be updated using a variety of different tools:
NOTE
For information about uploading/downloading files, refer to Section4.4, “Uploading/Downloading
Files”.
• Any text editing program capable of reading and writing ASCII files
• Difference/patching tools (e.g. the UNIX diff and patch command line utilities)
• Source Code Control systems (e.g. CVS, SVN)
CAUTION!
Configuration hazard – risk of data loss. Do not edit an encrypted configuration file. Any line that has
been modified manually will be ignored.
RUGGEDCOM ROS also has the ability to accept partial configuration updates. For example, to update only the
parameters for Ethernet port 1 and leave all other parameters unchanged, transfer a file containing only the
following lines to the device:
# Port Parameters
ethPortCfg
Port,Name,Media,State,AutoN,Speed,Dupx,FlowCtrl,LFI,Alarm,
1,Port 1,100TX,Enabled,On,Auto,Auto,Off,Off,On,
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Security
This chapter describes how to configure and manage the security-related features of RUGGEDCOM ROS.
CONTENTS
•Section6.1, “Configuring Passwords”
•Section6.2, “Clearing Private Data”
•Section6.3, “Managing User Authentication”
•Section6.4, “Managing Port Security”
•Section6.5, “Managing SSH and SSL Keys and Certificates”
Section6.1
Configuring Passwords
To configure passwords for one or more of the user profiles, do the following:
1. Navigate to Administration» Configure Passwords. The Configure Passwords form appears.
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12 13
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Figure72:Configure Passwords Form
1.Auth Type Box 2.Guest Username Box 3.Guest Password Box 4.Confirm Guest Password Box 5.Operator Username Box
6.Operator Password Box 7.Confirm Operator Password Box 8.Admin Username Box 9.Admin Password Box 10.Confirm
Admin Password Box 11.Password Minimum Length box 12.Apply Button 13.Reload Button
NOTE
RUGGEDCOM ROS requires that all user passwords meet strict guidelines to prevent the use of
weak passwords. When creating a new password, make sure it adheres to the following rules:
• Must not be less than 8 characters in length.
• Must not include the username or any 4 continous characters found in the username.
For example, if the username is Subnet25, the password may not be subnet25admin,
subnetadmin or net25admin. However, net-25admin or Sub25admin is permitted.
• Must have at least one alphabetic character and one number. Special characters are permitted.
• Must not have more than 3 continuously incrementing or decrementing numbers. For example,
Sub123 and Sub19826 are permitted, but Sub12345 is not.
An alarm will generate if a weak password is configured. The weak password alarm can be
disabled by the user. For more information about disabling alarms, refer to Section5.4, “Managing
Alarms”.
2. Configure the following parameter(s) as required:
Parameter Description
Auth Type Synopsis: { Local, RADIUS, TACACS+, RADIUSorLocal, TACACS+orLocal }
Default: Local
Password can be authenticated using localy configured values, or remote RADIUS or
TACACS+ server. Setting value to any of combinations that involve RADIUS or TACACS+
require Security Server Table to be configured.
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Configuring Passwords 105
Parameter Description
Settings:
• Local - Authentication from the local Password Table.
• RADIUS - Authentication using a RADIUS server.
• TACACS+ - Authentication using a TACACS+ server.
• RADIUSOrLocal - Authentication using RADIUS. If the server cannot be reached,
authenticate from the local Password Table.
• TACACS+OrLocal - Authentication using TACACS+. If the server cannot be reached,
authenticate from the local Password Table
NOTE
For console access, only local credentials are checked when Local, RADIUS,
or TACACS+ authentication is selected. When RADIUSOrLocal or TACACS
+OrLocal authentication is selected, RADIUS or TACACS+ credentials are
checked first, respectively. If authentication fails , local credentials will then
be checked.
Guest Username Synopsis: Any 15 characters
Default: guest
Related password is in field Guest Password; view only, cannot change settings or run
any commands.
Guest Password Synopsis: 19 character ASCII string
Related username is in field Guest Username; view only, cannot change settings or run
any commands.
Confirm Guest Password Synopsis: 19 character ASCII string
Related username is in field Guest Username; view only, cannot change settings or run
any commands.
Operator Username Synopsis: Any 15 characters
Default: operator
Related password is in field Oper Password; cannot change settings; can reset alarms,
statistics, logs, etc.
Operator Password Synopsis: 19 character ASCII string
Related username is in field Oper Username; cannot change settings; can reset alarms,
statistics, logs, etc
Confirm Operator Password Synopsis: 19 character ASCII string
Related username is in field Oper Username; cannot change settings; can reset alarms,
statistics, logs, etc.
Admin Username Synopsis: Any 15 characters
Default: admin
Related password is in field Admin Password; full read/write access to all settings and
commands.
Admin Password Synopsis: 19 character ASCII string
Related username is in field Admin Username; full read/write access to all settings and
commands.
Confirm Admin Password Synopsis: 19 character ASCII string
Related username is in field Admin Username; full read/write access to all settings and
commands.
Password Minimum Length Synopsis: 1 to 17
Default: 1
Configure the password string minimum length. The new password shorter than the
minimum length will be rejected.
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3. Click Apply.
Section6.2
Clearing Private Data
When enabled, during system boot up, a user with serial console access can clear all configuration data and keys
stored on the device, and restore all user names and passwords to factory default settings.
To clear private data, do the following:
NOTE
The commands used in the following procedure are time-sensitive. If the specified time limits are
exceeded before providing the appropriate response, the device will continue normal boot up.
1. Connect to the device via the RS-232 serial console port. For more information, refer to Section3.1.2,
“Connecting Directly”.
2. Cycle power to the device. As the device is booting up, the following prompt will appear:
Press any key to start
3. Within four seconds, press CTRL + r. The access banner will appear, followed by the command prompt:
>
4. Type the following command, then press Enter within 30 seconds:
clear private data
5. When prompted "Do you want to clear private data (Yes/No)?", answer yes and press Enter within five
seconds. All configuration and keys in flash will be zeroized. An entry in the event log will be created.
Crashlog.txt files (if existing) and syslog.txt files will be preserved. The device will reboot automatically.
Section6.3
Managing User Authentication
This section describes the various methods for authenticating users.
CONTENTS
•Section6.3.1, “Configuring User Name Extensions”
•Section6.3.2, “Managing RADIUS Authentication”
•Section6.3.3, “Managing TACACS+ Authentication”
Section6.3.1
Configuring User Name Extensions
When configured to authenticate users using RADIUS or TACACS+, RUGGEDCOM ROS can be configured to add
information to each user name important to the authentication server. This can include the NAS IP address, system
name, system location, or any other user-defined text.
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Managing RADIUS Authentication 107
If the Username Extension parameter is left blank, only the user name will be sent to the authentication server.
NOTE
Extensions are ignored when IEEE 802.1x port-based authentication is enabled. RUGGEDCOM ROS will
remain transparent and not make any changes to the username. For more information about IEEE
802.1x authentication, refer to Section6.4.1, “Port Security Concepts”.
To configure a username extension, do the following:
1. Navigate to Administration» Configure Security Server» Configure Common Security Parameters. The
Common Security Parameters form appears.
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Figure73:Common Security Parameters Form
1.Username Extension Box 2.Apply Button 3.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
Username Extension Synopsis: Any 127 characters
Defines the format of all user names sent to a RADIUS or TACACS+ server for
authentication. A prefix or suffix can be added to the user name using predefined
keywords (wrapped in % delimiters) or user-defined strings.
Delimited values include:
%Username%: The name associated with the user profile (e.g. admin, oper, etc.)
%IPaddr%: The management IP address of the switch that acts as a Network Access
Server (NAS).
%SysName%: The system name given to the device.
%SysLocation%: The system location given to the device.
All pre-defined keywords are case-insensitive.
Examples:
%Username%@ABC.com
%Username%_%SysLocation%
If an extension is not defined, only the user name is sent to the authentication server.
3. Click Apply.
Section6.3.2
Managing RADIUS Authentication
RUGGEDCOM ROS can be configured to act as a RADIUS client and forward user credentials to a RADIUS (Remote
Authentication Dial In User Service) server for remote authentication and authorization.
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RADIUS is a UDP-based protocol used for carrying authentication, authorization and configuration information
between a Network Access Server (NAS) that desires to authenticate its links and a shared authentication server. It
provides centralized authentication and authorization for network access.
RADIUS is also widely used in conjunction with the IEEE 802.1X standard for port security using the Extensible
Authentication Protocol (EAP).
IMPORTANT!
RADIUS messages are sent as UDP messages. The switch and the RADIUS server must use the same
authentication and encryption key.
IMPORTANT!
RUGGEDCOM ROS supports both Protected Extensible Authentication Protocol (PEAP) and EAP-MD5.
PEAP is more secure and is recommended if available in the supplicant.
NOTE
For more information about the RADIUS protocol, refer to RFC 2865 [http://tools.ietf.org/html/rfc2865].
For more information about the Extensible Authentication Protocol (EAP), refer to RFC 3748 [http://
tools.ietf.org/html/rfc3748].
CONTENTS
•Section6.3.2.1, “Configuring the RADIUS Server”
•Section6.3.2.2, “Configuring the RADIUS Client on the Device”
Section6.3.2.1
Configuring the RADIUS Server
NOTE
For information about configuring the RADIUS server, refer to the manufacturer's instructions of the
server being configured.
The Vendor-Specific attribute (or VSA) sent to the RADIUS server as part of the RADIUS request is used to
determine the access level from the RADIUS server. This attribute may be configured within the RADIUS server
with the following information:
Attribute Value
Vendor-Specific Vendor-ID: 15004
Format: String
Number: 2
Attribute: { Guest, Operator, Admin }
NOTE
If no access level is received in the response packet from the RADIUS server, access is denied.
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Configuring the RADIUS Client on the Device 109
Section6.3.2.2
Configuring the RADIUS Client on the Device
The RADIUS client can be configured to use two RADIUS servers: a primary server and a backup server. If the
primary server is unavailable, the device will automatically attempt to connect with the backup server.
NOTE
The RADIUS client uses the Password Authentication Protocol (PAP) to verify access.
To configure access to either the primary or backup RADIUS servers, do the following:
1. Navigate to Administration» Configure Security Server» Configure RADIUS Server. The RADIUS Server
table appears.
Figure74:RADIUS Server Table
2. Select either Primary or Backup from the table. The RADIUS Server form appears.
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Figure75:RADIUS Server Form
1.Server Box 2.IP Address Box 3.Auth UDP Port Box 4.Max Retry Box 5.Timeout Box 6.Auth Key Box 7.Confirm Auth Key
Box 8.Apply Button 9.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Server Synopsis: Any 8 characters
Default: Primary
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Parameter Description
This field tells whether this configuration is for a Primary or a Backup Server.
IP Address Synopsis: ###.###.###.### where ### ranges from 0 to 255
The Server IP Address.
Auth UDP Port Synopsis: 1 to 65535
Default: 1812
The IP Port on server.
Max Retry Synopsis: 1 to 10
Default: 2
The maximum number of times the Authenticator will attempt to contact the
authentication server to authenticate the user in case of any failure.
Timeout Synopsis: 1000 to 120000
Default: 10000
The amount of time in milliseconds the Authenticator will wait for a response from the
authentication server.
Auth Key Synopsis: 31 character ASCII string
The authentication key to be shared with server. Only available on Controlled versions.
Confirm Auth Key Synopsis: 31 character ASCII string
The authentication key to be shared with server. Only available on Controlled versions.
4. Click Apply.
Section6.3.3
Managing TACACS+ Authentication
TACACS+ (Terminal Access Controller Access-Control System Plus) is a TCP-based access control protocol that
provides authentication, authorization and accounting services to routers, Network Access Servers (NAS) and
other networked computing devices via one or more centralized servers.
CONTENTS
•Section6.3.3.1, “Configuring TACACS+”
•Section6.3.3.2, “Configuring User Privileges”
Section6.3.3.1
Configuring TACACS+
RUGGEDCOM ROS can be configured to use two TACACS+ servers: a primary server and a backup server. If the
primary server is unavailable, the device will automatically attempt to connect with the backup server.
To configure access to either the primary or backup TACACS+ servers, do the following:
1. Navigate to Administration» Configure Security Server» Configure TacPlus Server» Configure TACACS
Plus Server. The TACACS Plus Server table appears.
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Configuring TACACS+ 111
Figure76:TACACS Plus Server Table
2. Select either Primary or Backup from the table. The TACACS Plus Server form appears.
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Figure77:TACACS Plus Server Form
1.Server Box 2.IP Address Box 3.Auth TCP Port Box 4.Max Retry Box 5.Timeout Port Box 6.Reachable Box 7.Auth Key
Box 8.Confirm Key Box 9.Apply Button 10.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Server Synopsis: Any 8 characters
Default: Primary
This field tells whether this configuration is for a Primary or a Backup Server.
IP Address Synopsis: ###.###.###.### where ### ranges from 0 to 255
The Server IP Address.
Auth TCP Port Synopsis: 1 to 65535
Default: 49
The IP Port on server.
Max Retry Synopsis: 1 to 10
Default: 3
The maximum number of times the Authenticator will attempt to contact the
authentication server to authenticate the user in case of any failure.
Timeout Synopsis: 1000 to 120000
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Parameter Description
Default: 10000
The amount of time in milliseconds the Authenticator will wait for a response from the
authentication server.
Auth Key Synopsis: 31 character ascii string
Default: mySecret
The authentication key to be shared with server.
Confirm Auth Key Synopsis: 31 character ascii string
The authentication key to be shared with server.
4. Set the privilege levels for each user type (i.e. admin, operator and guest). For more information, refer to
Section6.3.3.2, “Configuring User Privileges”.
5. Click Apply.
Section6.3.3.2
Configuring User Privileges
Each TACACS+ authentication request includes a priv_lvl attribute that is used to grant access to the device. By
default, the attribute uses the following ranges:
•15 represents the admin access level
•2-14 represents the operator access level
•1 represents the guest access level
To configure the privilege levels for each user type, do the following:
1. Navigate to Administration» Configure Security Server» Configure TacPlus Server» Configure TACPLUS
Serv Privilege Config. The TACPLUS Serv Privilege Config form appears.
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Figure78:TACPLUS Serv Privilege Config Form
1.Admin Priv Box 2.Oper Priv Box 3.Guest Priv Box 4.Apply Button 5.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
Admin Priv Synopsis: (0 to 15)-(0 to 15)
Default: 15
Privilege level to be assigned to the user.
Oper Priv Synopsis: (0 to 15)-(0 to 15)
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Managing Port Security 113
Parameter Description
Default: 2-14
Privilege level to be assigned to the user.
Guest Priv Synopsis: (0 to 15)-(0 to 15)
Default: 1
Privilege level to be assigned to the user.
3. Click Apply.
Section6.4
Managing Port Security
Port security, or port access control, provides the ability to filter or accept traffic from specific MAC addresses.
Port security works by inspecting the source MAC addresses of received frames and validating them against the list
of MAC addresses authorized by the port. Unauthorized frames are filtered and, optionally, the part that received
the frame can be shut down permanently or for a specified period of time. An alarm will be raised indicating the
detected unauthorized MAC address.
Frames to unknown destination addresses are flooded through secure ports.
CONTENTS
•Section6.4.1, “Port Security Concepts”
•Section6.4.2, “Viewing a List of Authorized MAC Addresses”
•Section6.4.3, “Configuring Port Security”
•Section6.4.4, “Configuring IEEE 802.1X”
Section6.4.1
Port Security Concepts
This section describes some of the concepts important to the implementation of port security in RUGGEDCOM
ROS.
CONTENTS
•Section6.4.1.1, “Static MAC Address-Based Authentication”
•Section6.4.1.2, “IEEE 802.1x Authentication”
•Section6.4.1.3, “IEEE 802.1X Authentication with MAC Address-Based Authentication”
•Section6.4.1.4, “Assigning VLANS with Tunnel Attributes”
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Section6.4.1.1
Static MAC Address-Based Authentication
With this method, the switch validates the source MAC addresses of received frames against the contents in the
Static MAC Address Table.
RUGGEDCOM ROS also supports a highly flexible Port Security configuration which provides a convenient means
for network administrators to use the feature in various network scenarios.
A Static MAC address can be configured without a port number being explicitly specified. In this case, the
configured MAC address will be automatically authorized on the port where it is detected. This allows devices to
be connected to any secure port on the switch without requiring any reconfiguration.
The switch can also be programmed to learn (and, thus, authorize) a pre-configured number of the first source
MAC addresses encountered on a secure port. This enables the capture of the appropriate secure addresses when
first configuring MAC address-based authorization on a port. Those MAC addresses are automatically inserted into
the Static MAC Address Table and remain there until explicitly removed by the user.
Section6.4.1.2
IEEE 802.1x Authentication
The IEEE 802.1x standard defines a mechanism for port-based network access control and provides a means of
authenticating and authorizing devices attached to LAN ports.
Although IEEE 802.1x is mostly used in wireless networks, this method is also implemented in wired switches.
The IEEE 802.1x standard defines three major components of the authentication method: Supplicant,
Authenticator and Authentication server. RUGGEDCOM ROS supports the Authenticator component.
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Figure79:IEEE 802.1x General Topology
1.Supplicant 2.Authenticator Switch 3.LAN 4.Authentication Server
IMPORTANT!
RUGGEDCOM ROS supports both Protected Extensible Authentication Protocol (PEAP) and EAP-MD5.
PEAP is more secure and is recommended if available in the supplicant.
IEEE 802.1x makes use of the Extensible Authentication Protocol (EAP), which is a generic PPP authentication
protocol that supports various authentication methods. IEEE 802.1x defines a protocol for communication
between the Supplicant and the Authenticator, referred to as EAP over LAN (EAPOL).
RUGGEDCOM ROS communicates with the Authentication Server using EAP over RADIUS.
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IEEE 802.1X Authentication with MAC Address-Based
Authentication 115
NOTE
The switch supports authentication of one host per port.
NOTE
If the host’s MAC address is configured in the Static MAC Address Table, it will be authorized, even if the
host authentication is rejected by the authentication server.
Section6.4.1.3
IEEE 802.1X Authentication with MAC Address-Based Authentication
This method, also referred to as MAB (MAC-Authentication Bypass), is commonly used for devices, such as VoIP
phones and Ethernet printers, that do not support the 802.1x protocol. This method allows such devices to be
authenticated using the same database infrastructure as that used in 802.1x.
IEEE 802.1x with MAC-Authentication Bypass works as follows:
1. The device connects to a switch port.
2. The switch learns the device MAC address upon receiving the first frame from the device (the device usually
sends out a DHCP request message when first connected).
3. The switch sends an EAP Request message to the device, attempting to start 802.1X authentication.
4. The switch times out while waiting for the EAP reply, because the device does not support 802.1x.
5. The switch sends an authentication message to the authentication server, using the device MAC address as
the username and password.
6. The switch authenticates or rejects the device according to the reply from the authentication server.
Section6.4.1.4
Assigning VLANS with Tunnel Attributes
RUGGEDCOM ROS supports assigning a VLAN to the authorized port using tunnel attributes, as defined in RFC
3580 [http://tools.ietf.org/html/rfc3580], when the Port Security mode is set to 802.1x or 802.1x/MAC-Auth.
In some cases, it may be desirable to allow a port to be placed into a particular VLAN, based on the authentication
result. For example:
• To allow a particular device, based on its MAC address, to remain on the same VLAN as it moves within a
network, configure the switches for 802.1X/MAC-Auth mode
• To allow a particular user, based on the user’s login credentials, to remain on the same VLAN when the user logs
in from different locations, configure the switches for 802.1X mode
If the RADIUS server wants to use this feature, it indicates the desired VLAN by including tunnel attributes in the
Access-Accept message. The RADIUS server uses the following tunnel attributes for VLAN assignment:
• Tunnel-Type=VLAN (13)
• Tunnel-Medium-Type=802
• Tunnel-Private-Group-ID=VLANID
Note that VLANID is 12-bits and takes a value between 1 and 4094, inclusive. The Tunnel-Private-Group-ID is a
string as defined in RFC 2868 [http://tools.ietf.org/html/rfc2868], so the VLANID integer value is encoded as a
string.
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If the tunnel attributes are not returned by the authentication server, the VLAN assigned to the switch port
remains unchanged.
Section6.4.2
Viewing a List of Authorized MAC Addresses
To view a list of static MAC addresses learned from secure ports, navigate to Network Access Control» Port
Security» View Authorized MAC Addresses. The Authorized MAC Addresses table appears.
NOTE
Only MAC addresses authorized on a static MAC port(s) are shown. MAC addresses authorized with
IEEE 802.1X are not shown.
Figure80:Authorized MAC Addresses Table
This table displays the following information:
Parameter Description
Port Synopsis: 1 to maximum port number
Port on which MAC address has been learned.
MAC Address Synopsis: ##-##-##-##-##-## where ## ranges 0 to FF
Authorized MAC address learned by the switch.
VID Synopsis: 0 to 65535
VLAN Identifier of the VLAN upon which the MAC address operates.
If a MAC address is not listed, do the following:
• Configure port security. For more information, refer to Section6.4.3, “Configuring Port Security”.
• Configure IEEE 802.1X. For more information, refer to Section6.4.4, “Configuring IEEE 802.1X”.
Section6.4.3
Configuring Port Security
To configure port security, do the following:
1. Navigate to Network Access Control» Port Security» Configure Ports Security. The Ports Security table
appears.
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Configuring Port Security 117
Figure81:Ports Security Table
2. Select an Ethernet port. The Ports Security form appears.
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Figure82:Ports Security Form
1.Port Box 2.Security List 3.Autolearn Box 4.Shutdown Time Box 5.Status Box 6.Apply Button 7.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Port Synopsis: 1 to maximum port number
Default: 1
The port number as seen on the front plate silkscreen of the switch.
Security Synopsis: { Off, Static MAC, 802.1X, 802.1x/MAC-Auth }
Default: Off
Enables or disables the port's security feature. Two types of port access control are
available:
• Static MAC address-based. With this method, authorized MAC address(es) should be
configured in the Static MAC Address table. If some MAC addresses are not known
in advance (or it is not known to which port they will be connected), there is still an
option to configure the switch to auto-learn certain number of MAC addresses. Once
learned, they do not age out until the unit is reset or the link goes down.
• IEEE 802.1X standard authentication.
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Parameter Description
• IEEE 802.1X with MAC-Authentication, also known as MAC-Authentication Bypass.
With this option, the device can authenticate clients based on the client’s MAC address
if IEEE 802.1X authentication times out.
Autolearn Synopsis: 1 to 16 or { None }
Default: None
Only applicable when the 'Security' field has been set to 'Static MAC'. It specifies
maximum number of MAC addresses that can be dynamically learned on the port.
If there are static addresses configured on the port, the actual number of addresses
allowed to be learned is this number minus the number of the static MAC addresses.
Shutdown Time Synopsis: 1 to 86400 s or { Until reset, Don't shutdown }
Default: Don't shutdown
Specifies for how long to shut down the port, if a security violation occurs.
Status Synopsis: Any 31 characters
Describes the security status of the port.
4. Click Apply.
Section6.4.4
Configuring IEEE 802.1X
To configure IEEE 802.1X port-based authentication, do the following:
1. Navigate to Network Access Control» Port Security» Configure 802.1X. The 802.1X Parameters table
appears.
Figure83:802.1X Parameters Table
2. Select an Ethernet port. The 802.1X Parameters form appears.
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11
10
9
8
7
6
5
4
3
2
1
Figure84:802.1X Parameters Form
1.Port Box 2.tX Period Box 3.quietPeriod Box 4.reAuthEnabled Options 5.reAuthPeriod Box 6.reAuthMax Box
7.suppTimeout Box 8.serverTimeout Box 9.maxReq Box 10.Apply Button 11.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Port Synopsis: 1 to maximum port number
Default: 1
The port number as seen on the front plate silkscreen of the switch.
txPeriod Synopsis: 1 to 65535
Default: 30 s
The time to wait for the Supplicant's EAP Response/Identity packet before retransmitting
an EAP Request/Identity packet.
quietPeriod Synopsis: 0 to 65535
Default: 60 s
The period of time not to attempt to acquire a Supplicant after the authorization session
failed.
reAuthEnabled Synopsis: { No, Yes }
Default: No
Enables or disables periodic re-authentication.
reAuthPeriod Synopsis: 60 to 86400
Default: 3600 s
The time between periodic re-authentication of the Supplicant.
reAuthMax Synopsis: 1 to 10
Default: 2
The number of re-authentication attempts that are permitted before the port becomes
unauthorized.
suppTimeout Synopsis: 1 to 300
Default: 30 s
The time to wait for the Supplicant's response to the authentication server's EAP packet.
serverTimeout Synopsis: 1 to 300
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Parameter Description
Default: 30 s
The time to wait for the authentication server's response to the Supplicant's EAP packet.
maxReq Synopsis: 1 to 10
Default: 2
The maximum number of times to retransmit the authentication server's EAP Request
packet to the Supplicant before the authentication session times out.
4. Click Apply.
Section6.5
Managing SSH and SSL Keys and Certificates
RUGGEDCOM ROS uses X.509v3 certificates and keys to establish secure connections for remote logins (SSH) and
Web access (SSL).
IMPORTANT!
Siemens recommends the following actions before commissioning the device:
• Replace the factory-provisioned SSL certificate with one signed by a trusted Certificate Authority (CA)
• Replace the factory-provisioned SSH host key pair with one generated by a trusted security authority
NOTE
Only admin users can write certificates and keys to the device.
Each RUGGEDCOM ROS device is shipped with a unique RSA 2048-based SSH host key pair and an RSA 2048-based
self-signed certificate that are generated at and provisioned by the factory. The administrator may upload a new
certificate and keys to the system at any time, which will overwrite the existing ones. In addition, CLI commands
are available to regenerate SSL certificate and key pair as well as the SSH host key pair.
There are three types of certificates and keys used in RUGGEDCOM ROS:
NOTE
Network exposure to a ROS unit operating with the default keys, although always only temporary
by design, should be avoided. The best way to reduce or eliminate this exposure is to provision user-
created certificate and keys as quickly as possible, and preferably before the unit is placed in network
service.
NOTE
The default certificate and keys are common to all RUGGEDCOM ROS versions without a certificate or
key files. That is why it is important to either allow the key auto-generation to complete or to provision
custom keys. In this way, one has at least unique, and at best, traceable and verifiable keys installed
when establishing secure communication with the unit.
•Default
A default certificate and SSL/SSH keys are built in to RUGGEDCOM ROS and are common across all RUGGEDCOM
ROS units sharing the same firmware image. In the event that valid SSL certificate or SSL/SSH key files are not
available on the device (as is usually only the case when upgrading from an old ROS version that does not
support user-configurable keys and therefore does was not shipped with unique, factory-generated keys), the
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default certificate and keys are put into service temporarily so that SSH and SSL (HTTPS) sessions can be served
until generated or provisioned keys are available.
•Auto-Generated
If a default SSL certificate and SSL/SSH keys are in use, RUGGEDCOM ROS immediately begins to generate a
unique certificate and SSL/SSH keys for the device in the background. This process may take several minutes to
complete depending on the requested key length and how busy the device is at the time. If a custom certificate
and keys are loaded while auto-generated certificates and keys are being generated, the generator will abort
and the custom certificate and keys and will be used.
•Custom (Recommended)
Custom certificates and keys are the most secure option. They give the user complete control over certificate
and key management, allow for the provision of certificates signed by a public or local certificate authority,
enable strictly controlled access to private keys, and allow authoritative distribution of SSL certificates, any CA
certificates, and public SSH keys.
NOTE
The RSA or EC private key corresponding to the SSL certificate must be appended to the certificate in
the ssl.crt file.
CONTENTS
•Section6.5.1, “SSL Certificates”
•Section6.5.2, “SSH Host Key”
•Section6.5.3, “Managing SSH Public Keys”
•Section6.5.4, “Certificate and Key Examples”
Section6.5.1
SSL Certificates
RUGGEDCOM ROS supports SSL certificates that conform to the following specifications:
• X.509 v3 digital certificate format
• PEM format
• For RUGGEDCOM ROS Controlled verions: RSA key pair, 1024, 2048 or 3072 bits; or NIST P-192, P-224, P-256,
P-384 or P-521
• For RUGGEDCOM ROS Non-Controlled (NC) verions: RSA key pair, 512 to 2048 bits
NOTE
RSA keys smaller than 2048 bits in length are not recommended. Support is only included here for
compatibility with legacy equipment.
Two standard PEM files are required: the SSL certificate and the corresponding RSA private key file. These are
concatenated into the resulting ssl.crt file, which may then be uploaded to RUGGEDCOM ROS. For more
information about transferring files between the device and a host computer, refer to Section4.4, “Uploading/
Downloading Files”.
While RUGGEDCOM ROS is capable of using self-signed certificates created using the sslkeygen command,
Siemens recommends using an X.509 certificate issued by an organization's own Certificate Authority (CA).
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Section6.5.2
SSH Host Key
NOTE
SSH is not supported in Non-Controlled (NC) versions of RUGGEDCOM ROS.
Controlled versions of RUGGEDCOM ROS support SSH public/private key pairs that conform to the following
specifications:
• PEM format
• DSA key pair, 1024, 2048 or 3072 bits in length
• RSA key pair, 1024, 2048 or 3072 bits in length
NOTE
DSA or RSA key generation times increase depending on the key length. 1024 bit RSA keys take less
than 5 minutes to generate on a lightly loaded unit, whereas 2048 bit keys may take significantly
longer. A typical modern PC system, however, can generate these keys in seconds.
The following (bash) shell script fragment uses the ssh-keygen command line utility to generate a 2048 bit RSA
key suitable for use in RUGGEDCOM ROS. The resulting ssh.keys file may then be uploaded to RUGGEDCOM
ROS:
# RSA key size:
BITS=2048
# Make an SSH key pair:
ssh-keygen -t RSA -b $BITS -N '' -f ssh.keys
For an example of an SSH key generated by RUGGEDCOM ROS, refer to Section6.5.4, “Certificate and Key
Examples”.
Section6.5.3
Managing SSH Public Keys
RUGGEDCOM ROS allows admin users to list, add and delete SSH public keys. Public keys are added as non-volatile
storage (i.e. flash) files on RUGGEDCOM ROS devices, and are retrieved at the time of SSH client authentication.
CONTENTS
•Section6.5.3.1, “Public Key Requirements”
•Section6.5.3.2, “Adding a Public Key”
•Section6.5.3.3, “Viewing a List of Public Keys”
•Section6.5.3.4, “Updating a Public Key”
•Section6.5.3.5, “Deleting a Public Key”
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Section6.5.3.1
Public Key Requirements
Public keys are stored in a flash file, called sshpub.keys. The sshpub.keys file consists of ssh user public key entries.
Similar to the config.csv file, each entry must be separated by an empty line. An entry has two components. They
are, in sequence:
• Header
• Key
The header contains the parameters of the entry, separated by comma. The parameters are, in sequence:
• ID: A number between 0 and 9999
• Entry type: UserKey
• Access Level: (Admin, Operator or Guest)
• Revocation Status: active/inactive (always active for keys)
• User Name: This is the client's user name (not the RUGGEDCOM ROS user name). This will be used by clients to
later SSH into the RUGGEDCOM ROS device.
The key must be in RFC4716 format, or in PEM format with any of the following header and footer lines:
-----BEGIN PUBLIC KEY-----
-----END PUBLIC KEY-----
-----BEGIN SSH2 PUBLIC KEY-----
-----END SSH2 PUBLIC KEY-----
-----BEGIN RSA PUBLIC KEY-----
-----END RSA PUBLIC KEY-----
The following is an example of a valid entry in the sshpub.keys file in PEM format:
1,userkey,admin,active,alice
---- BEGIN SSH2 PUBLIC KEY ----
AAAAB3NzaC1yc2EAAAABIwAAAQEA4mRrqfk+RKXnmGRvzMyWVDsbq5VwpGGrlLQYCrjVEa
NdbXsphqYKop8V5VUeXFRAUFzOy82yk8TF/5JxGPWq6wRNjhnYR7IY2AiMBq0+K8XeURl/
z5K2XNRjnqTZSFwkhaUVJeduvjGgOlNN4yvgUwF3n0idU9k3E1q/na+LmYIeGhOwzCqoAc
ipHAdR4fhD5u0jbmvjv+gDikTSZIbj9eFJfP09ekImMLHwbBry0SSBpqAKbwVdWEXIKQ47
zz7ao2/rs3rSV16IXSq3Qe8VZh2irah0Md6JFMOX2qm9fo1I62q1DDgheCOsOiGPf4xerH
rI2cs6FT31rAdx2JOjvw==
---- END SSH2 PUBLIC KEY ----
The following is an example of a valid entry in the sshpub.keys file in in RFC4716 format:
2,userkey,admin,active,bob
ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDH0NivR8zzbTxlecvFPzR/
GR24NrRJa0Lc7scNsWRgi0XulHuGrRLRB5RoQ39+spdig88Y8CqhRI49XJx7uLJe0Su3RvyNYz1jkdSwHq2hSZCpukJxJ6CK95Po/
sVa5Gq2gMaHowiYDSkcx+AJywzK/eM6i/jc125lRxFPdfkj74u+ob3PCvmIWz5z3WAJBrQU1IDPHDets511WMu8O9/
mAPZRwjqrWhRsqmcXZuv5oo54wIopCAZSo20SPzM2VmXFuUsEwDkvYMXLJK1koJPbDjH7yFFC7mwK2eMU/
oMFFn934cbO5N6etsJSvplYQ4pMCw6Ok8Q/bB5cPSOa/rAt bob@work
RUGGEDCOM ROS allows only 16 user key entries to be stored. Each key entry must meet the following limits:
• Key type must be either RSA 2048 bits or RSA 3072 bits
• Key size must not exceed 4000 base64 encoded characters
• Entry Type in the header must not exceed 8 ASCII characters
• Access Level in the header must not exceed 8 ASCII characters (operator is maximum)
• Revocation status in the header must not exceed 8 ASCII characters (inactive is maximum)
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• User Name must not exceed 12 ASCII characters
Section6.5.3.2
Adding a Public Key
Administrators can add one or more public keys to RUGGEDCOM ROS.
There are two ways to update sshpub.keys:
• Upload a locally-created file directly to the sshpub.keys file. The content of the file replace the content currently
stored in flash memory.
• Upload a locally-created file to the sshaddpub.keys file. The content of the file is appended to the existing
entries in the sshpub.keys file.
IMPORTANT!
The content of the sshaddpub.keys file must follow the same syntax as the sshpub.keys file.
To add keys, do the following:
1. Create a public key file via a host computer.
2. Transfer the public key file to the device using SFTP or Xmodem. For more information about transferring
files, refer to Section4.4, “Uploading/Downloading Files”.
3. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
4. Check the system log to make sure the files were properly transferred. For more information about viewing
the system log, refer to Section4.5.1, “Viewing Local and System Logs”.
Section6.5.3.3
Viewing a List of Public Keys
Admin users can view a list of existing public keys on the device.
To view public keys, do the following:
1. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
2. At the CLI prompt, type:
sshpubkey list
A list of public keys will appear, including their key ID, access level, revocation status, user name and key
fingerprint.
Section6.5.3.4
Updating a Public Key
Admin users can update public keys.
To update public keys, do the following:
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1. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
2. At the CLI prompt, type:
sshpubkey list
A list of public keys will appear, including their key ID, access level, revocation status, user name and key
fingerprint.
3. Type the following commands to update the public keys:
Command Description
sshpubkey update_id current_ID
new_ID
Updates the ID of user public key.
NOTE
The user public key ID must be a number between 0 and 9999.
•current_ID is the ID currently assigned to the public key
•new_ID is the ID that will be used to identify the public key going forward
sshpubkey update_al AL Updates the access level of a user public key.
•AL is the access level (admin, operator or guest) of the public key to be updated
sshpubkey update_rs RS Updates the revocation status (active, inactive) of a user public key.
•RS is the revocation status of the public key to be updated
sshpubkey update_un UN Updates the user name of a user public key.
•UN is the user name of the public key to be updated
Section6.5.3.5
Deleting a Public Key
Admin users can delete one or more public keys.
To delete a public key, do the following:
1. Log in to the device as an admin user and access the CLI shell. For more information about accessing the CLI
shell, refer to Section2.5, “Using the Command Line Interface”.
2. At the CLI prompt, type:
sshpubkey list
A list of public keys will appear, including access level, revocation status, user name and key fingerprint.
3. Type the following commands to delete the public key(s):
Command Description
sshpubkey remove ID Removes a key from the non-volatile storage.
•ID is the ID of the public key to be removed
Section6.5.4
Certificate and Key Examples
For SSL, certificates must meet the requirements outlined in Section6.5.1, “SSL Certificates”.
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The certificate and keys must be combined in a single ssl.crt file and uploaded to the device.
The following is an example of a combined SSL certificate and key:
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
For SSH, DSA or RSA host key pairs must meet the requirements outlined in Section6.5.2, “SSH Host Key”.
The following is an example of a PEM formatted SSH key:
-----BEGIN DSA PRIVATE KEY-----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-----END DSA PRIVATE KEY-----
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Managing Virtual LANs 127
Layer 2
This chapter describes the Layer 2, or Data Link Layer (DLL), features of RUGGEDCOM ROS.
CONTENTS
•Section7.1, “Managing Virtual LANs”
•Section7.2, “Managing MAC Addresses”
•Section7.3, “Managing Multicast Filtering”
Section7.1
Managing Virtual LANs
A Virtual Local Area Network (VLAN) is a group of devices on one or more LAN segments that communicate as if
they were attached to the same physical LAN segment. VLANs are extremely flexible because they are based on
logical connections, rather than physical connections.
When VLANs are introduced, all traffic in the network must belong to one VLAN or another. Traffic on one VLAN
cannot pass to another, except through an inter-network router or Layer 3 switch.
VLANs are created in three ways:
•Explicitly
Static VLANs can be created in the switch. For more information about static VLANs, refer to Section7.1.5,
“Managing Static VLANs”.
•Implicitly
When a VLAN ID (VID) is set for a port-based VLAN, static MAC address or IP interface, an appropriate VLAN is
automatically created if it does not yet exist.
•Dynamically
VLANs can be learned through GVRP. For more information about GVRP, refer to Section7.1.1.8, “GARP VLAN
Registration Protocol (GVRP)”
For more information about VLANs, refer to Section7.1.1, “VLAN Concepts”.
CONTENTS
•Section7.1.1, “VLAN Concepts”
•Section7.1.2, “Viewing a List of VLANs”
•Section7.1.3, “Enabling/Disabling VLAN-Aware Mode”
•Section7.1.4, “Configuring VLANs for Specific Ethernet Ports”
•Section7.1.5, “Managing Static VLANs”
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Section7.1.1
VLAN Concepts
This section describes some of the concepts important to the implementation of VLANs in RUGGEDCOM ROS.
CONTENTS
•Section7.1.1.1, “Tagged vs. Untagged Frames”
•Section7.1.1.2, “Native VLAN”
•Section7.1.1.3, “The Management VLAN”
•Section7.1.1.4, “Edge and Trunk Port Types”
•Section7.1.1.5, “Ingress and Egress Rules”
•Section7.1.1.6, “Forbidden Ports List”
•Section7.1.1.7, “VLAN-Aware and VLAN-Unaware Modes”
•Section7.1.1.8, “GARP VLAN Registration Protocol (GVRP)”
•Section7.1.1.9, “VLAN Advantages”
Section7.1.1.1
Tagged vs. Untagged Frames
VLAN tags identify frames as part of a VLAN network. When a switch receives a frame with a VLAN (or 802.1Q)
tag, the VLAN identifier (VID) is extracted and the frame is forwarded to other ports on the same VLAN.
When a frame does not contain a VLAN tag, or contains an 802.1p (prioritization) tag that only has prioritization
information and a VID of 0, it is considered an untagged frame.
Section7.1.1.2
Native VLAN
Each port is assigned a native VLAN number, the Port VLAN ID (PVID). When an untagged frame ingresses a port, it
is associated with the port's native VLAN.
By default, when a switch transmits a frame on the native VLAN, it sends the frame untagged. The switch can be
configured to transmit tagged frames on the native VLAN.
Section7.1.1.3
The Management VLAN
Management traffic, like all traffic on the network, must belong to a specific VLAN. The management VLAN is
configurable and always defaults to VLAN 1. This VLAN is also the default native VLAN for all ports, thus allowing
all ports the possibility of managing the product. Changing the management VLAN can be used to restrict
management access to a specific set of users.
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Section7.1.1.4
Edge and Trunk Port Types
Each port can be configured as an edge or trunk port.
An edge port attaches to a single end device, such as a PC or Intelligent Electronic Device (IED). An edge port
carries traffic on the native VLAN.
Trunk ports are part of the network and carry traffic for all VLANs between switches. Trunk ports are automatically
members of all VLANs configured in the switch.
The switch can 'pass through' traffic, forwarding frames received on one trunk port out of another trunk port. The
trunk ports must be members of all VLANs that the 'pass through' traffic is part of, even if none of those VLANs are
used on edge ports.
Frames transmitted out of the port on all VLANs other than the port's native VLAN are always sent tagged.
NOTE
It may be desirable to manually restrict the traffic on the trunk to a specific group of VLANs. For
example, when the trunk connects to a device, such as a Layer 3 router, that supports a subset of the
available LANs. To prevent the trunk port from being a member of the VLAN, include it in the VLAN's
Forbidden Ports list.
For more information about the Forbidden Ports list, refer to Section7.1.1.6, “Forbidden Ports List”.
Port Type VLANs Supported PVID Format Usage
Untagged All frames are sent and received without the need for VLAN tags.Edge 1 (Native)
Configured
Tagged VLAN traffic domains are enforced on a single VLAN.
Trunk All Configured Tagged or Untagged Switch-to-Switch Connections: VLANs must be manually created and
administered.
Multiple-VLAN End Devices: Implement connections to end devices
that support multiple VLANs at the same time.
Section7.1.1.5
Ingress and Egress Rules
Ingress and egress rules determine how traffic is received and transmitted by the switch.
Ingress rules are applied as follows to all frame when they are received by the switch:
• If an incoming frame is untagged or has a VID of 0 (priority tagged), the frame is associated with the ingress
port's PVID
• If an incoming frame is tagged, the frame is allowed to pass, while keeping its VID
• Incoming frames are only dropped if ingress filtering is enabled and the frame is tagged with a VID that does not
match any VLAN to which the ingress port is a member
Egress rules are applied as follows to all frames when they are transmitted by the switch.
• If PVID tagging is enabled, outgoing frames are tagged if they are associated with the egress port's native VLAN,
regardless of the egress port's membership type (edge or trunk)
• Frames egressing on an edge interface are dropped if they are associated with a VLAN other than the egress
port's native VLAN
• Frames egressing on a trunk interface are tagged if they are associated with a VLAN to which the egress port is a
member
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Section7.1.1.6
Forbidden Ports List
Each VLAN can be configured to exclude ports from membership in the VLAN using the forbidden ports list. For
more information, refer to Section7.1.5.2, “Adding a Static VLAN”.
Section7.1.1.7
VLAN-Aware and VLAN-Unaware Modes
The native operation mode for an IEEE 802.1Q compliant switch is VLAN-aware. Even if a specific network
architecture does not use VLANs, RUGGEDCOM ROS's default VLAN settings allow the switch to still operate in a
VLAN-aware mode, while providing functionality required for almost any network application. However, the IEEE
802.1Q standard defines a set of rules that must be followed by all VLAN-aware switches:
• Valid VIDs are within the range of 1 to 4094. VIDs equal to 0 or 4095 are invalid.
• Each frame ingressing a VLAN-aware switch is associated with a valid VID.
• Each frame egressing a VLAN-aware switch is either untagged or tagged with a valid VID. Priority-tagged frames
with an invalid VID will never sent out by a VLAN-aware switch.
NOTE
Some applications have requirements conflicting with IEEE 802.Q1 native mode of operation. For
example, some applications explicitly require priority-tagged frames to be received by end devices.
To avoid conflicts and provide full compatibility with legacy (VLAN-unaware) devices, RUGGEDCOM
ROS can be configured to work in VLAN-unaware mode.
In that mode:
• Frames ingressing a VLAN-unaware device are not associated with any VLAN
• Frames egressing a VLAN-unaware device are sent out unmodified (i.e. in the same untagged,
802.1Q-tagged or priority-tagged format as they were received)
Section7.1.1.8
GARP VLAN Registration Protocol (GVRP)
GARP VLAN Registration Protocol (GVRP) is a standard protocol built on GARP (Generic Attribute Registration
Protocol) to automatically distribute VLAN configuration information in a network. Each switch in a network needs
only to be configured with VLANs it requires locally. VLANs configured elsewhere in the network are learned
through GVRP. A GVRP-aware end station (i.e. PC or Intelligent Electronic Device) configured for a particular VID
can be connected to a trunk on a GVRP-aware switch and automatically become part of the desired VLAN.
When a switch sends GVRP bridge protocol data units (BPDUs) out of all GVRP-enabled ports, GVRP BPDUs advertise
all the VLANs known to that switch (configured manually or learned dynamically through GVRP) to the rest of the
network.
When a GVRP-enabled switch receives a GVRP BPDU advertising a set of VLANs, the receiving port becomes a
member of those advertised VLANs and the switch begins advertising those VLANs through all the GVRP-enabled
ports (other than the port on which the VLANs were learned).
To improve network security using VLANs, GVRP-enabled ports may be configured to prohibit the learning of any
new dynamic VLANs but at the same time be allowed to advertise the VLANs configured on the switch.
The following is an example of how to use GVRP:
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A
A2
A1
D
D1
D2
B
B4
B3
B1 B2
C
C2
C1
E
E2
E1
D
EA C
1
2
Figure85:Using GVRP
1.Switch 2.End Node
• Switch B is the core switch, all others are edge switches
• Ports A1, B1 to B4, C1, D1, D2 and E1 are GVRP aware
• Ports B1 to B4, D1 and D2 are set to advertise and learn
• Ports A1, C1 and E1 are set to advertise only
• Ports A2, C2 and E2 are edge ports
• End node D is GVRP aware
• End nodes A, E and C are GVRP unaware
• Ports A2 and C2 are configured with PVID 7
• Port E2 is configured with PVID 20
• End node D is interested in VLAN 20, hence VLAN 20 is advertised by it towards switch D
• D2 becomes a member of VLAN 20
• Ports A1 and C1 advertise VID 7
• Ports B1 and B2 become members of VLAN 7
• Ports B1, B2 and D1 advertise VID 20
• Ports B3, B4 and D1 become members of VLAN 20
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132 VLAN Advantages
For more information about how to configure GVRP, refer to Section7.1.4, “Configuring VLANs for Specific
Ethernet Ports”.
Section7.1.1.9
VLAN Advantages
The following are a few of the advantages offered by VLANs.
Traffic Domain Isolation
VLANs are most often used for their ability to restrict traffic flows between groups of devices.
Unnecessary broadcast traffic can be restricted to the VLAN that requires it. Broadcast storms in one VLAN need
not affect users in other VLANs.
Hosts on one VLAN can be prevented from accidentally or deliberately assuming the IP address of a host on
another VLAN.
The use of creative bridge filtering and multiple VLANs can carve seemingly unified IP subnets into multiple
regions policed by different security/access policies.
Multi-VLAN hosts can assign different traffic types to different VLANs.
2
3
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Figure86:Multiple Overlapping VLANs
1.VLAN 2.Switch
Administrative Convenience
VLANs enable equipment moves to be handled by software reconfiguration instead of by physical cable
management. When a host's physical location is changed, its connection point is often changed as well. With
VLANs, the host's VLAN membership and priority are simply copied to the new port.
Reduced Hardware
Without VLANs, traffic domain isolation requires the use of separate bridges for separate networks. VLANs
eliminate the need for separate bridges.
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Viewing a List of VLANs 133
The number of network hosts may often be reduced. Often, a server is assigned to provide services for
independent networks. These hosts may be replaced by a single, multi-horned host supporting each network on
its own VLAN. This host can perform routing between VLANs.
Multi-VLAN hosts can assign different traffic types to different VLANs.
199.85.245.192/26
199.85.245.128/26
199.85.245.1/25
1
4
2
3
5
Figure87:Inter-VLAN Communications
1.Server, Router or Layer 3 Switch 2.Switch 3.VLAN 2 4.VLAN 3 5.VLAN 4
Section7.1.2
Viewing a List of VLANs
To view a list of all VLANs, whether they were created statically, implicitly or dynamically, navigate to Virtual
LANs» View VLAN Summary. The VLAN Summary table appears.
Figure88:VLAN Summary Table
If a VLANs are not listed, add static VLANs as needed. For more information, refer to Section7.1.5.2, “Adding a
Static VLAN”.
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Section7.1.3
Enabling/Disabling VLAN-Aware Mode
To enable or disable VLAN-aware mode, do the following:
1. Navigate to Virtual LANs» Configure Global VLAN Parameters. The Global VLAN Parameters form
appears.
3
2
1
Figure89:Global VLAN Parameters Form
1.VLAN-Aware Mode Options 2.Apply Button 3.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
VLAN-aware Synopsis: { No, Yes }
Default: Yes
Set either VLAN-aware or VLAN-unaware mode of operation.
3. Click Apply.
Section7.1.4
Configuring VLANs for Specific Ethernet Ports
When a VLAN ID is assigned to an Ethernet port, the VLAN appears in the VLAN Summary table where it can be
further configured.
To configure a VLAN for a specific Ethernet port, do the following:
1. Navigate to Virtual LANs» Configure Port VLAN Parameters. The Port VLAN Parameters table appears.
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Configuring VLANs for Specific Ethernet Ports 135
Figure90:Port VLAN Parameters Table
2. Select a port. The Port VLAN Parameters form appears.
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4
3
2
1
5
Figure91:Port VLAN Parameters Form
1.Port(s) Box 2.Type List 3.PVID Box 4.PVID Format Options 5.GVRP List 6.Apply Button 7.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Port(s) Synopsis: Any combination of numbers valid for this parameter
The port number as seen on the front plate silkscreen of the switch (or a list of ports, if
aggregated in a port trunk).
Type Synopsis: { Edge, Trunk }
Default: Edge
This parameter specifies how the port determines its membership in VLANs. There are
few types of ports:
• Edge - the port is only a member of one VLAN (its native VLAN specified by the PVID
parameter).
• Trunk - the port is automatically a member of all configured VLANs. Frames
transmitted out of the port on all VLANs except the port's native VLAN will be always
tagged. It can also be configured to use GVRP for automatic VLAN configuration.
PVID Synopsis: 1 to 4094
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Parameter Description
Default: 1
The Port VLAN Identifier specifies the VLAN ID associated with untagged (and 802.1p
priority tagged) frames received on this port.
Frames tagged with a non-zero VLAN ID will always be associated with the VLAN ID
retrieved from the frame tag.
Modify this parameter with care! By default, the switch is programmed to use VLAN 1 for
management and every port on the switch is programmed to use VLAN 1. If you modify
a switch port to use a VLAN other than the management VLAN, devices on that port will
not be able to manage the switch.
PVID Format Synopsis: { Untagged, Tagged }
Default: Untagged
Specifies whether frames transmitted out of the port on its native VLAN (specified by the
PVID parameter) will be tagged or untagged.
NOTE
When QinQ is enabled, all non-QinQ ports will be untagged and cannot be
changed, and all QinQ ports will be tagged, and cannot be changed.
GVRP Synopsis: { Adv&Learn, Adv Only, Disabled }
Default: Disabled
Configures GVRP (Generic VLAN Registration Protocol) operation on the port. There are
several GVRP operation modes:
• DISABLED - the port is not capable of any GVRP processing.
• ADVERTISE ONLY - the port will declare all VLANs existing in the switch (configured or
learned) but will not learn any VLANs.
• ADVERTISE & LEARN - the port will declare all VLANs existing in the switch (configured
or learned) and can dynamically learn VLANs.
Only Trunk ports are GVRP-capable.
4. Click Apply.
Section7.1.5
Managing Static VLANs
This section describes how to configure and manage static VLANs.
CONTENTS
•Section7.1.5.1, “Viewing a List of Static VLANs”
•Section7.1.5.2, “Adding a Static VLAN”
•Section7.1.5.3, “Deleting a Static VLAN”
Section7.1.5.1
Viewing a List of Static VLANs
To view a list of static VLANs, navigate to Virtual LANs» Configure Static VLANs. The Static VLANs table
appears.
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Figure92:Static VLANs Table
If a static VLAN is not listed, add the VLAN. For more information, refer to Section7.1.5.2, “Adding a Static VLAN”.
Section7.1.5.2
Adding a Static VLAN
To add a static VLAN, do the following:
1. Navigate to Virtual LANs» Configure Static VLANs. The Static VLANs table appears.
1
Figure93:Static VLANs Table
1.InsertRecord
2. Click InsertRecord. The Static VLANs form appears.
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6
7
8
1
2
3
4
5
Figure94:Static VLANs Form
1.VID Box 2.VLAN Name Box 3.Forbidden Ports Box 4.IGMP Options 5.MSTI Box 6.Apply Button 7.Delete Button
8.Reload Button
3. Configure the following parameter(s) as required:
NOTE
If IGMP Options is not enabled for the VLAN, both IGMP messages and multicast streams will be
forwarded directly to all members of the VLAN. If any one member of the VLAN joins a multicast
group, then all members of the VLAN will receive the multicast traffic.
Parameter Description
VID Synopsis: 1 to 1000
Synopsis: 1 to 4094
Default: 1
The VLAN Identifier is used to identify the VLAN in tagged Ethernet frames according to
IEEE 802.1Q.
VLAN Name Synopsis: Any 19 characters
The VLAN name provides a description of the VLAN purpose (for example, Engineering
VLAN).
Forbidden Ports Synopsis: Any combination of numbers valid for this parameter
These are ports that are not allowed to be members of the VLAN.
Examples:
• None - all ports of the switch are allowed to be members of the VLAN
• 2,4-6,8 - all ports except ports 2, 4, 6, 7 and 8 are allowed to be members of the VLAN
IGMP Synopsis: { Off, On }
Default: Off
This parameter enables or disables IGMP Snooping on the VLAN.
MSTI Synopsis: 0 to 16
Default: 0
This parameter is only valid for Multiple Spanning Tree Protocol (MSTP) and has no effect
if MSTP is not used. The parameter specifies the Multiple Spanning Tree Instance (MSTI)
to which the VLAN should be mapped.
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4. Click Apply.
Section7.1.5.3
Deleting a Static VLAN
To delete a static VLAN, do the following:
1. Navigate to Virtual LANs» Configure Static VLANs. The Static VLANs table appears.
Figure95:Static VLANs Table
2. Select the static VLAN from the table. The Static VLANs form appears.
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7
8
1
2
3
4
5
Figure96:Static VLANs Form
1.VID Box 2.VLAN Name Box 3.Forbidden Ports Box 4.IGMP Options 5.MSTI Box 6.Apply Button 7.Delete Button
8.Reload Button
3. Click Delete.
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Section7.2
Managing MAC Addresses
This section describes how to manage MAC addresses.
CONTENTS
•Section7.2.1, “Viewing a List of MAC Addresses”
•Section7.2.2, “Configuring MAC Address Learning Options”
•Section7.2.3, “Managing Static MAC Addresses”
•Section7.2.4, “Purging All Dynamic MAC Addresses”
Section7.2.1
Viewing a List of MAC Addresses
To view a list of all static and dynamically learned MAC addresses, navigate to MAC Address Tables» View MAC
Addresses. The MAC Addresses table appears.
Figure97:MAC Address Table
If a MAC address is not listed, do the following:
1. Configure the MAC address learning options to control the aging time of dynamically learned MAC addresses
of other devices on the network. For more information, refer to Section7.2.2, “Configuring MAC Address
Learning Options”.
2. Configure the address on the device as a static MAC address. For more information, refer to Section7.2.3.2,
“Adding a Static MAC Address”.
Section7.2.2
Configuring MAC Address Learning Options
The MAC address learning options control how and when MAC addresses are removed automatically from the
MAC address table. Individual addressees are removed when the aging timer is exceeded. Addresses can also be
removed when a link failure or topology change occurs.
To configure the MAC address learning options, do the following:
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1. Navigate to MAC Address Tables» Configure MAC Address Learning Options. The MAC Address Learning
Options form appears.
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2
1
Figure98:MAC Address Learning Options Form
1.Aging Time Box 2.Age Upon Link Loss Options 3.Apply Button 4.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
Aging Time Synopsis: 15 to 800
Default: 300 s
This parameter configures the time that a learned MAC address is held before being aged
out.
Age Upon Link Loss Synopsis: { No, Yes }
Default: Yes
When set to Yes, all MAC addresses learned on a failed port will be aged-out immediately
upon link failure detection.
When link failure occurs the switch may have some MAC addresses previously learned
on the failed port. As long as those addresses are not aged-out the switch will still be
forwarding traffic to that port, thus preventing that traffic from reaching its destination
via the new network topology.
Note that when a network redundancy protocol, e.g. RSTP, is enabled on the switch, that
redundancy protocol may, upon a link failure, flush MAC addresses learned on the failed
port regardless of the setting of this parameter.
3. Click Apply.
Section7.2.3
Managing Static MAC Addresses
Static MAC addresses must be configured when the device is only able to receive frames, not transmit them. They
may also need to be configured if port security (if supported) must be enforced.
Prioritized MAC addresses are configured when traffic to or from a specific device on a LAN segment is to be
assigned a higher CoS priority than other devices on that LAN segment.
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NOTE
A MAC address cannot be learned on a VLAN that has not been configured in the Static VLAN table. If
a frame with an unknown VLAN tag arrives on a secured port, it is considered a security violation and
RUGGEDCOM ROS will generate a port security alarm.
CONTENTS
•Section7.2.3.1, “Viewing a List of Static MAC Addresses”
•Section7.2.3.2, “Adding a Static MAC Address”
•Section7.2.3.3, “Deleting a Static MAC Address”
Section7.2.3.1
Viewing a List of Static MAC Addresses
To view a list of static MAC addresses configured on the device, navigate to MAC Address Tables» Configure
Static MAC Addresses. The Static MAC Addresses table appears.
Figure99:Static MAC Address Table
If static MAC addresses have not been configured, add addresses as needed. For more information, refer to
Section7.2.3.2, “Adding a Static MAC Address”.
Section7.2.3.2
Adding a Static MAC Address
To add a static MAC address to the Static MAC Address Table, do the following:
1. Navigate to MAC Address Tables» Configure Static MAC Addresses. The Static MAC Addresses table
appears.
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1
Figure100:Static MAC Addresses Table
1.InsertRecord
2. Click InsertRecord. The Static MAC Addresses form appears.
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Figure101:Static MAC Addresses Form
1.MAC Address Box 2.VID Box 3.Port Box 4.CoS Options 5.Apply Button 6.Delete Button 7.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
MAC Address Synopsis: ##-##-##-##-##-## where ## ranges 0 to FF
A MAC address learned by the switch.
Maximum of 6 wildcard characters may be used to specify a range of MAC addresses
allowed to be learned by the Port Security module (when Port Security is set to 'Static
MAC' mode). Wildcard must start from the right hand end and continuous.
Examples:
•00-0A-DC-**-**-** means the entire MAC address space of RuggedCom.
•00-0A-DC-12-3*-** means the range 00-0A-DC-12-30-00 to 00-0A-DC-12-3F-FF.
VID Synopsis: 1 to 1000
Default: 1
VLAN Identifier of the VLAN upon which the MAC address operates.
Port Synopsis: 1 to maximum port number or { Learn }
Default: Learn
Enter the port number upon which the device with this address is located. The security
mode of the port being selected should not be '802.1X'.
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Parameter Description
If the port should be auto-learned, set this parameter to 'Learn'. The option 'Learn' is
applicable for Port Security in 'Static MAC' mode.
CoS Synopsis: { Normal, Crit }
Default: Normal
Prioritizes traffic for the specified MAC address.
4. Click Apply.
Section7.2.3.3
Deleting a Static MAC Address
To delete a static MAC address from the Static MAC Address Table, do the following:
1. Navigate to MAC Address Tables» Configure Static MAC Addresses. The Static MAC Addresses table
appears.
Figure102:Static MAC Addresses Table
2. Select the MAC address from the table. The Static MAC Addresses form appears.
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Figure103:Static MAC Addresses Form
1.MAC Address Box 2.VID Box 3.Port Box 4.CoS Options 5.Apply Button 6.Delete Button 7.Reload Button
3. Click Delete.
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Section7.2.4
Purging All Dynamic MAC Addresses
To purge the dynamic MAC address list of all entries, do the following:
1. Navigate to MAC Address Tables» Purge MAC Address Table. The Purge MAC Address Table form
appears.
1
Figure104:Purge MAC Address Table Form
1.Confirm Button
2. Click Confirm.
Section7.3
Managing Multicast Filtering
Multicast traffic can be filtered using IGMP (Internet Group Management Protocol) snooping or GMRP (GARP
Multicast Registration Protocol).
CONTENTS
•Section7.3.1, “Managing IGMP”
•Section7.3.2, “Managing GMRP”
Section7.3.1
Managing IGMP
IGMP is used by IP hosts to report their host group memberships with multicast routers. As hosts join and leave
specific multicast groups, streams of traffic are directed to or withheld from that host.
The IGMP protocol operates between multicast routers and IP hosts. When an unmanaged switch is placed
between multicast routers and their hosts, the multicast streams will be distributed to all ports.This may introduce
significant traffic onto ports that do not require it and receive no benefit from it.
IGMP Snooping, when enabled, will act on IGMP messages sent from the router and the host, restricting traffic
streams to the appropriate LAN segments.
IMPORTANT!
RUGGEDCOM ROS restricts IGMP hosts from subscribing to the following special multicast addresses:
• 224.0.0.0 to 224.0.0.255
• 224.0.1.129
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These addresses are reserved for routing protocols and IEEE 1588. If an IGMP membership report
contains one of these addresses, the report is forwarded by the switch without learning about the host.
CONTENTS
•Section7.3.1.1, “IGMP Concepts”
•Section7.3.1.2, “Viewing a List of Multicast Group Memberships”
•Section7.3.1.3, “Viewing Forwarding Information for Multicast Groups”
•Section7.3.1.4, “Configuring IGMP”
Section7.3.1.1
IGMP Concepts
The following describes some of the concepts important to the implementation of multicast filtering using IGMP:
IGMP In Operation
The following network diagram provides a simple example of the use of IGMP.
P1
C3 C4 C1 C2
3
2
3
2
1
4
M2
M1
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Figure105:Example – IGMP In Operation
1.Producer 2.Membership Queries 3.Membership Reports 4.Consumer 5.Multicast Router
One producer IP host (P1) is generating two IP multicast streams, M1 and M2. There are four potential consumers
of these streams, C1 through C4. The multicast router discovers which host wishes to subscribe to which stream
by sending general membership queries to each segment.
In this example, the general membership query sent to the C1-C2 segment is answered by a membership report
(or join) indicating the desire to subscribe to stream M2. The router will forward the M2 stream to the C1-C2
segment. In a similar fashion, the router discovers that it must forward stream M1 to segment C3-C4.
A consumer may join any number of multicast groups, issuing a membership report for each group. When a host
issues a membership report, other hosts on the same network segment that also require membership to the same
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group suppress their own requests, since they would be redundant. In this way, the IGMP protocol guarantees the
segment will issue only one membership report for each group.
The router periodically queries each of its segments in order to determine whether at least one consumer still
subscribes to a given stream. If it receives no responses within a given time period (usually two query intervals),
the router will prune the multicast stream from the given segment.
A more common method of pruning occurs when consumers wishing to unsubscribe issue an IGMP leave group
message. The router will immediately issue a group-specific membership query to determine whether there are
any remaining subscribers of that group on the segment. After the last consumer of a group has unsubscribed, the
router will prune the multicast stream from the given segment.
Switch IGMP Operation
The IGMP Snooping feature provides a means for switches to snoop (i.e. watch) the operation of routers, respond
with joins/leaves on the behalf of consumer ports, and prune multicast streams accordingly. There are two modes
of IGMP the switch can be configured to assume: active and passive.
•Active Mode
IGMP supports a routerless mode of operation.
When such a switch is used without a multicast router, it is able to function as if it is a multicast router sending
IGMP general queries.
•Passive Mode
When such a switch is used in a network with a multicast router, it can be configured to run Passive IGMP. This
mode prevents the switch from sending the queries that can confuse the router causing it to stop issuing IGMP
queries.
NOTE
A switch running in passive mode requires the presence of a multicast router or it will be unable to
forward multicast streams at all if no multicast routers are present.
NOTE
At least one IGMP Snooping switch must be in active mode to make IGMP functional.
IGMP Snooping Rules
IGMP Snooping adheres to the following rules:
• When a multicast source starts multicasting, the traffic stream will be immediately blocked on segments from
which joins have not been received.
• Unless configured otherwise, the switch will forward all multicast traffic to the ports where multicast routers are
attached.
• Packets with a destination IP multicast address in the 224.0.0.X range that are not IGMP are always forwarded
to all ports. This behavior is based on the fact that many systems do not send membership reports for IP
multicast addresses in this range while still listening to such packets.
• The switch implements IGMPv2 proxy-reporting (i.e. membership reports received from downstream are
summarized and used by the switch to issue its own reports).
• The switch will only send IGMP membership reports out of those ports where multicast routers are attached, as
sending membership reports to hosts could result in unintentionally preventing a host from joining a specific
group.
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• Multicast routers use IGMP to elect a master router known as the querier. The querier is the router with the
lowest IP address. All other routers become non-queriers, participating only in forwarding multicast traffic.
Switches running in active mode participate in the querier election the same as multicast routers.
• When the querier election process is complete, the switch simply relays IGMP queries received from the querier.
• When sending IGMP packets, the switch uses its own IP address, if it has one, for the VLAN on which packets are
sent, or an address of 0.0.0.0, if it does not have an assigned IP address.
NOTE
IGMP Snooping switches perform multicast pruning using a multicast frames’ destination MAC
multicast address, which depends on the group IP multicast address. IP address W.X.Y.Z corresponds to
MAC address 01-00-5E-XX-YY-ZZ where XX is the lower 7 bits of X, and YY and ZZ are simply Y and Z
coded in hexadecimal.
One can note that IP multicast addresses, such as 224.1.1.1 and 225.1.1.1, will both map onto the
same MAC address 01-00-5E-01-01-01. This is a problem for which the IETF Network Working Group
currently has offered no solution. Users are advised to be aware of and avoid this problem.
IGMP and RSTP
An RSTP change of topology can render the routes selected to carry multicast traffic as incorrect. This results in lost
multicast traffic.
If RSTP detects a change in the network topology, IGMP will take some actions to avoid the loss of multicast
connectivity and reduce network convergence time:
• The switch will immediately issue IGMP queries (if in IGMP Active mode) to obtain potential new group
membership information.
• The switch can be configured to flood multicast streams temporarily out of all ports that are not configured as
RSTP Edge Ports.
Combined Router and Switch IGMP Operation
The following example illustrates the challenges faced with multiple routers, VLAN support and switching.
Producer P1 resides on VLAN 2 while P2 resides on VLAN 3. Consumer C1 resides on both VLANs whereas C2 and
C3 reside on VLANs 3 and 2, respectively. Router 2 resides on VLAN 2, presumably to forward multicast traffic to a
remote network or act as a source of multicast traffic itself.
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C1 C3
C2
P1
P2
2
1
5
3
4
Figure106:Example – Combined Router and Switch IGMP In Operation
1.Producer 2.Multicast Router 1 3.Multicast Router 2 4.Switch 5.Host
In this example:
• P1, Router 1, Router 2 and C3 are on VLAN 2
• P2 and C2 are on VLAN 3
• C1 is on both VLAN 2 and 3
Assuming that router 1 is the querier for VLAN 2 and router 2 is simply a non-querier, the switch will periodically
receive queries from router 1 and maintain the information concerning which port links to the multicast router.
However, the switch port that links to router 2 must be manually configured as a router port. Otherwise, the
switch will send neither multicast streams nor joins/leaves to router 2.
Note that VLAN 3 does not have an external multicast router. The switch should be configured to operate in its
routerless mode and issue general membership queries as if it is the router.
•Processing Joins
If host C1 wants to subscribe to the multicast streams for both P1 and P2, it will generate two membership
reports. The membership report from C1 on VLAN 2 will cause the switch to immediately initiate its own
membership report to multicast router 1 (and to issue its own membership report as a response to queries).
The membership report from host C1 for VLAN 3 will cause the switch to immediately begin forwarding
multicast traffic from producer P2 to host C2.
•Processing Leaves
When host C1 decides to leave a multicast group, it will issue a leave request to the switch. The switch will poll
the port to determine if host C1 is the last member of the group on that port. If host C1 is the last (or only)
member, the group will immediately be pruned from the port.
Should host C1 leave the multicast group without issuing a leave group message and then fail to respond to a
general membership query, the switch will stop forwarding traffic after two queries.
When the last port in a multicast group leaves the group (or is aged-out), the switch will issue an IGMP leave
report to the router.
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Section7.3.1.2
Viewing a List of Multicast Group Memberships
Using IGMP snooping, RUGGEDCOM ROS records group membership information on a per-port basis based on
membership reports it observes between the router and host.
To view a list of multicast group memberships, navigate to Multicast Filtering» View IGMP Group Membership.
The IGMP Group Membership table appears.
Figure107:IGMP Group Membership Table
This table provides the following information:
Parameter Description
Port Synopsis: 1 to maximum port number
The port number as seen on the front plate silkscreen of the switch.
VID Synopsis: 0 to 65535
VLAN Identifier of the VLAN upon which the multicast group operates.
Group Synopsis: ###.###.###.### where ### ranges from 0 to 255
Multicast Group Address.
Ver Synopsis: { v3, v2, v1 }
Specifies the IGMP version of the learnt multicast group.
Reporter Synopsis: ###.###.###.### where ### ranges from 0 to 255
Specifies the source IP address that is reporting subscription to the multicast group.
Age Synopsis: 0 to 7210 s
Specifies the current age of the IP multicast group learned on the port in seconds.
If the table is empty, do the following:
• Make sure traffic is being sent to the device.
• Make sure IGMP is properly configured on the device. For more information, refer to Section7.3.1.4,
“Configuring IGMP”.
Section7.3.1.3
Viewing Forwarding Information for Multicast Groups
Multicast forwarding information for every source, group and VLAN combination learned by RUGGEDCOM ROS is
recorded in the IGMP Multicast Forwarding table.
To view the IGMP Multicast Forwarding table, navigate to Multicast Filtering» View IGMP Multicast
Forwarding. The IGMP Multicast Forwarding table appears.
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Figure108:IGMP Multicast Forwarding Table
This table provides the following information:
Parameter Description
VID Synopsis: 0 to 65535
VLAN Identifier of the VLAN upon which the multicast group operates.
Group Synopsis: ###.###.###.### where ### ranges from 0 to 255
Multicast Group Address.
Source Synopsis: ###.###.###.### where ### ranges from 0 to 255 or { * }
Source Address. * means all possible source addresses.
Joined Ports Synopsis: Comma-separated list of ports
All ports that currently receive multicast traffic for the specified multicast group.
Router Ports Synopsis: Comma-separated list of ports
All ports that have been manually configured or dynamically discovered (by observing router
specific traffic) as ports that link to multicast routers.
If the table is empty, do the following:
• Make sure traffic is being sent to the device.
• Make sure IGMP is properly configured on the device. For more information, refer to Section7.3.1.4,
“Configuring IGMP”.
Section7.3.1.4
Configuring IGMP
To configure the IGMP, do the following:
1. Make sure one or more static VLANs exist with IGMP enabled. For more information, refer to Section7.1.5,
“Managing Static VLANs”.
2. Navigate to Multicast Filtering» Configure IGMP Parameters. The IGMP Parameters form appears.
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7
8
6
5
4
3
2
1
Figure109:IGMP Parameters Form
1.Mode Options 2.IGMP Version 3.Query Interval Box 4.Router Ports Box 5.Router Forwarding Options 6.RSTP Flooding
Options 7.Apply Button 8.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Mode Synopsis: { Passive, Active }
Default: Passive
Specifies the IGMP mode. Options include:
•PASSIVE – the switch passively snoops IGMP traffic and never sends IGMP queries
•ACTIVE – the switch generates IGMP queries, if no queries from a better candidate for
being the querier are detected for a while.
IGMP Version Synopsis: { v2, v3 }
Default: v2
Specifies the configured IGMP version on the switch. Options include:
•v2 – Sets the IGMP version to version 2. When selected for a snooping switch, all
IGMP reports and queries greater than v2 are forwarded, but not added to the IGMP
Multicast Forwarding table.
•v3 – Sets the IGMP version to version 3. General queries are generated in IGMPv3
format, all versions of IGMP messages are processed by the switch, and traffic is
pruned based on multicast group address only.
Query Interval Synopsis: 10 to 3600
Default: 60 s
The time interval between IGMP queries generated by the switch.
NOTE
This parameter also affects the Group Membership Interval (i.e. the group
subscriber aging time), therefore, it takes effect even in PASSIVE mode.
Router Ports Synopsis: Comma-separated list of ports
Default: None
This parameter specifies ports that connect to multicast routers. If you do not configure
known router ports, the switch may be able to detect them, however it is advisable to
pre-configure them.
Router Forwarding Synopsis: { Off, On }
Default: On
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Parameter Description
This parameter specifies whether multicast streams will be always forwarded to multicast
routers.
RSTP Flooding Synopsis: { Off, On }
Default: Off
This parameter specifies whether multicast streams will be flooded out of all RSTP non-
edge ports upon topology change detection. Such flooding is desirable, if guaranteed
multicast stream delivery after topology change is most important.
4. Click Apply.
Section7.3.2
Managing GMRP
The GMRP is an application of the Generic Attribute Registration Protocol (GARP) that provides a Layer 2
mechanism for managing multicast group memberships in a bridged Layer 2 network. It allows Ethernet switches
and end stations to register and unregister membership in multicast groups with other switches on a LAN, and for
that information to be disseminated to all switches in the LAN that support Extended Filtering Services.
GMRP is an industry-standard protocol first defined in IEEE 802.1D-1998 and extended in IEEE 802.1Q-2005. GARP
was defined in IEEE 802.1D-1998 and updated in 802.1D-2004.
NOTE
GMRP provides similar functionality at Layer 2 to what IGMP provides at Layer 3.
CONTENTS
•Section7.3.2.1, “GMRP Concepts”
•Section7.3.2.2, “Viewing a Summary of Multicast Groups”
•Section7.3.2.3, “Configuring GMRP Globally”
•Section7.3.2.4, “Configuring GMRP for Specific Ethernet Ports”
•Section7.3.2.5, “Viewing a List of Static Multicast Groups”
•Section7.3.2.6, “Adding a Static Multicast Group”
•Section7.3.2.7, “Deleting a Static Multicast Group”
Section7.3.2.1
GMRP Concepts
The following describes some of the concepts important to the implementation of multicast filtering using GMRP:
Joining a Multicast Group
To join a multicast group, an end station transmits a GMRP join message. The switch that receives the join
message adds the port through which the message was received to the multicast group specified in the message.
It then propagates the join message to all other hosts in the VLAN, one of which is expected to be the multicast
source.
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When a switch transmits GMRP updates (from GMRP-enabled ports), all of the multicast groups known to the
switch, whether configured manually or learned dynamically through GMRP, are advertised to the rest of network.
As long as one host on the Layer 2 network has registered for a given multicast group, traffic from the
corresponding multicast source will be carried on the network. Traffic multicast by the source is only forwarded by
each switch in the network to those ports from which it has received join messages for the multicast group.
Leaving a Multicast Group
Periodically, the switch sends GMRP queries in the form of a leave all message. If a host (either a switch or an
end station) wishes to remain in a multicast group, it reasserts its group membership by responding with an
appropriate join request. Otherwise, it can either respond with a leave message or simply not respond at all. If the
switch receives a leave message or receives no response from the host for a timeout period, the switch removes
the host from the multicast group.
Notes About GMRP
Since GMRP is an application of GARP, transactions take place using the GARP protocol. GMRP defines the
following two Attribute Types:
• The Group Attribute Type, used to identify the values of group MAC addresses
• The Service Requirement Attribute Type, used to identify service requirements for the group
Service Requirement Attributes are used to change the receiving port's multicast filtering behavior to one of the
following:
• Forward All Multicast group traffic in the VLAN, or
• Forward All Unknown Traffic (Multicast Groups) for which there are no members registered in the device in a
VLAN
If GMRP is disabled, GMRP packets received will be forwarded like any other traffic. Otherwise, GMRP packets will
be processed and not forwarded.
Establishing Membership with GMRP
The following example illustrates how a network of hosts and switches can dynamically join two multicast groups
using GMRP.
In this scenario, there are two multicast sources, S1 and S2, multicasting to Multicast Groups 1 and 2, respectively.
A network of five switches, including one core switch (B), connects the sources to two hosts, H1 and H2, which
receive the multicast streams from S1 and S2, respectively.
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A1
A2
A E C
D
S1
E1
E2
C1
C2
B3
B4
B1
B2
B
D1
D2
S2
H2H1
1
1
2
3
Figure110:Example – Establishing Membership with GMRP
1.Multicast Source 2.Switch 3.Multicast Host
The hosts and switches establish membership with the Multicast Group 1 and 2 as follows:
1. Host H1 is GMRP unaware, but needs to see traffic for Multicast Group 1. Therefore, Port E2 on Switch E is
statically configured to forward traffic for Multicast Group 1.
2. Switch E advertises membership in Multicast Group 1 to the network through Port E1, making Port B4 on
Switch B a member of Multicast Group 1.
3. Switch B propagates the join message, causing Ports A1, C1 and D1 to become members of Multicast Group 1.
4. Host H2 is GMRP-aware and sends a join request for Multicast Group 2 to Port C2, which thereby becomes a
member of Multicast Group 2.
5. Switch C propagates the join message, causing Ports A1, B2, D1 and E1 to become members of Multicast
Group 2.
Once GMRP-based registration has propagated through the network, multicast traffic from S1 and S2 can reach its
destination as follows:
• Source S1 transmits multicast traffic to Port D2 which is forwarded via Port D1, which has previously become a
member of Multicast Group 1.
• Switch B forwards the Group 1 multicast via Port B4 towards Switch E.
• Switch E forwards the Group 1 multicast via Port E2, which has been statically configured for membership in
Multicast Group 1.
• Host H1, connected to Port E2, thus receives the Group 1 multicast.
• Source S2 transmits multicast traffic to Port A2, which is then forwarded via port A1, which has previously
become a member of Multicast Group 2.
• Switch B forwards the Group 2 multicast via Port B2 towards Switch C.
• Switch C forwards the Group 2 multicast via Port C2, which has previously become a member of Group 2.
• Ultimately, Host H2, connected to Port C2, receives the Group 2 multicast.
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Section7.3.2.2
Viewing a Summary of Multicast Groups
To view a summary of all multicast groups, navigate to Multicast Filtering» View Multicast Group Summary.
The Multicast Group Summary table appears.
Figure111:Multicast Group Summary Table
This table provides the following information:
Parameter Description
VID Synopsis: 0 to 65535
VLAN Identifier of the VLAN upon which the multicast group operates.
MAC Address Synopsis: ##-##-##-##-##-## where ## ranges 0 to FF
Multicast group MAC address.
Static Ports Synopsis: Any combination of numbers valid for this parameter
Ports that joined this group statically through static configuration in Static MAC Table and to
which the multicast group traffic is forwarded.
GMRP Dynamic Ports Synopsis: Any combination of numbers valid for this parameter
Ports that joined this group dynamically through GMRP Application and to which the
multicast group traffic is forwarded.
Section7.3.2.3
Configuring GMRP Globally
To configure global settings for GMRP, do the following:
1. Navigate to Multicast Filtering» Configure Global GMRP Parameters. The Global GMRP Parameters form
appears.
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54
2
1
3
Figure112:Global GMRP Parameters Form
1.GMRP Enable Options 2.RSTP Flooding Options 3.Leave Timer Box 4.Apply Button 5.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
GMRP Enable Synopsis: { No, Yes }
Default: No
Globally enable or disable GMRP.
When GMRP is globally disabled, GMRP configurations on individual ports are ignored.
When GMRP is globally enabled, each port can be individually configured.
RSTP Flooding Synopsis: { On, Off }
Default: Off
This parameter specifies whether multicast streams will be flooded out of all RSTP non-
edge ports upon topology change detection. Such flooding is desirable, if guaranteed
multicast stream delivery after topology change is most important.
Leave Timer Synopsis: 600 to 300000 ms
Default: 4000 ms
Time (milliseconds) to wait after issuing Leave or LeaveAll before removing registered
multicast groups. If Join messages for specific addresses are received before this timer
expires, the addresses will be kept registered.
3. Click Apply.
Section7.3.2.4
Configuring GMRP for Specific Ethernet Ports
To configure GMRP for a specific Ethernet port, do the following:
1. Make sure the global settings for GMRP have been configured. For more information, refer to Section7.3.2.3,
“Configuring GMRP Globally”.
2. Navigate to Multicast Filtering» Configure Port GMRP Parameters. The Port GMRP Parameters table
appears.
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Figure113:Port GMRP Parameters Table
3. Select an Ethernet port. The Port GMRP Parameters form appears.
43
1
2
Figure114:Port GMRP Parameters Form
1.Port(s) Box 2.GMRP List 3.Apply Button 4.Reload Button
4. Configure the following parameter(s) as required:
Parameter Description
Port(s) Synopsis: Any combination of numbers valid for this parameter
The port number as seen on the front plate silkscreen of the switch (or a list of ports, if
aggregated in a port trunk).
GMRP Synopsis: { Disabled, Adv Only, Adv&Learn }
Default: Default: Disabled
Configures GMRP (GARP Multicast Registration Protocol) operation on the port. There are
several GMRP operation modes:
• DISABLED - the port is not capable of any GMRP processing.
• ADVERTISE ONLY - the port will declare all MCAST addresses existing in the switch
(configured or learned) but will not learn any MCAST addresses.
• ADVERTISE & LEARN - the port will declare all MCAST Addresses existing in the switch
(configured or learned) and can dynamically learn MCAST addresses.
5. Click Apply.
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Viewing a List of Static Multicast Groups 159
Section7.3.2.5
Viewing a List of Static Multicast Groups
To view a list of static multicast groups, navigate to Multicast Filtering» Configure Static Multicast Groups. The
Static Multicast Groups table appears.
Figure115:Static Multicast Groups Table
If a static multicast group is not listed, add the group. For more information, refer to Section7.3.2.6, “Adding a
Static Multicast Group”.
Section7.3.2.6
Adding a Static Multicast Group
To add a static multicast group from another device, do the following:
1. Navigate to Multicast Filtering» Configure Static Multicast Groups. The Static Multicast Groups table
appears.
1
Figure116:Static Multicast Groups Table
1.InsertRecord
2. Click InsertRecord. The Static Multicast Groups form appears.
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7
5
6
3
2
1
4
Figure117:Static Multicast Groups Form
1.MAC Address Box 2.VID Box 3.CoS List 4.Ports Box 5.Apply Button 6.Delete Button 7.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
MAC Address Synopsis: ##-##-##-##-##-## where ## ranges 0 to FF
Default: 00-00-00-00-00-00
Multicast group MAC address.
VID Synopsis: 1 to 1000
Default: 1
VLAN Identifier of the VLAN upon which the multicast group operates.
CoS Synopsis: { Normal, Crit }
Default: Normal
Prioritizes traffic for the specified MAC address.
Ports Synopsis: Any combination of numbers valid for this parameter
Default: None
Ports to which the multicast group traffic is forwarded.
4. Click Apply.
Section7.3.2.7
Deleting a Static Multicast Group
To delete a static multicast group, do the following:
1. Navigate to Multicast Filtering» Configure Static Multicast Groups. The Static Multicast Groups table
appears.
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Figure118:Static Multicast Groups Table
2. Select the group from the table. The Static Multicast Groups form appears.
7
5
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3
2
1
4
Figure119:Static Multicast Groups Form
1.MAC Address Box 2.VID Box 3.Priority Box 4.Ports Box 5.Apply Button 6.Delete Button 7.Reload Button
3. Click Delete.
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Managing Spanning Tree Protocol 163
Redundancy
This chapter describes how to configure and manage the redundancy-related features of RUGGEDCOM ROS.
CONTENTS
•Section8.1, “Managing Spanning Tree Protocol”
Section8.1
Managing Spanning Tree Protocol
This section describes how to manage the spanning tree protocol.
CONTENTS
•Section8.1.1, “RSTP Operation”
•Section8.1.2, “RSTP Applications”
•Section8.1.3, “Configuring STP Globally”
•Section8.1.4, “Configuring STP for Specific Ethernet Ports”
•Section8.1.5, “Configuring eRSTP”
•Section8.1.6, “Viewing Global Statistics for STP”
•Section8.1.7, “Viewing STP Statistics for Ethernet Ports”
•Section8.1.8, “Clearing Spanning Tree Protocol Statistics”
Section8.1.1
RSTP Operation
The 802.1D Spanning Tree Protocol (STP) was developed to enable the construction of robust networks that
incorporate redundancy while pruning the active topology of the network to prevent loops. While STP is effective,
it requires that frame transfer halt after a link outage until all bridges in the network are guaranteed to be aware
of the new topology. Using the values recommended by 802.1D, this period lasts 30 seconds.
The Rapid Spanning Tree Protocol (RSTP, IEEE 802.1w) was a further evolution of the 802.1D Spanning Tree
Protocol. It replaced the settling period with an active handshake between bridges that guarantees the rapid
propagation of topology information throughout the network. RSTP also offers a number of other significant
innovations, including:
• Topology changes in RSTP can originate from and be acted upon by any designated bridges, leading to more
rapid propagation of address information, unlike topology changes in STP, which must be passed to the root
bridge before they can be propagated to the network.
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• RSTP explicitly recognizes two blocking roles - Alternate and Backup Port - which are included in computations
of when to learn and forward. STP, however, recognizes only one state - Blocking - for ports that should not
forward.
• RSTP bridges generate their own configuration messages, even if they fail to receive any from the root bridge.
This leads to quicker failure detection. STP, by contrast, must relay configuration messages received on the root
port out its designated ports. If an STP bridge fails to receive a message from its neighbor, it cannot be sure
where along the path to the root a failure occurred.
• RSTP offers edge port recognition, allowing ports at the edge of the network to forward frames immediately
after activation, while at the same time protecting them against loops.
While providing much better performance than STP, IEEE 802.1w RSTP still required up to several seconds to
restore network connectivity when a topology change occurred.
A revised and highly optimized RSTP version was defined in the IEEE standard 802.1D-2004 edition. IEEE
802.1D-2004 RSTP reduces network recovery times to just milliseconds and optimizes RSTP operation for various
scenarios.
RUGGEDCOM ROS supports IEEE 802.1D-2004 RSTP.
CONTENTS
•Section8.1.1.1, “RSTP States and Roles”
•Section8.1.1.2, “Edge Ports”
•Section8.1.1.3, “Point-to-Point and Multipoint Links”
•Section8.1.1.4, “Path and Port Costs”
•Section8.1.1.5, “Bridge Diameter”
•Section8.1.1.6, “eRSTP”
•Section8.1.1.7, “Fast Root Failover”
Section8.1.1.1
RSTP States and Roles
RSTP bridges have roles to play, either root or designated. One bridge - the Root Bridge - is the logical center of
the network. All other bridges in the network are Designated bridges. RSTP also assigns each port of the bridge a
state and a role. The RSTP state describes what is happening at the port in relation to address learning and frame
forwarding. The RSTP role basically describes whether the port is facing the center or the edges of the network
and whether it can currently be used.
State
There are three RSTP states: Discarding, Learning and Forwarding.
The discarding state is entered when the port is first put into service. The port does not learn addresses in this
state and does not participate in frame transfer. The port looks for RSTP traffic to determine its role in the network.
When it is determined that the port will play an active part in the network, the state will change to learning.
The learning state is entered when the port is preparing to play an active part in the network. The port learns
addresses in this state but does not participate in frame transfer. In a network of RSTP bridges, the time spent in
this state is usually quite short. RSTP bridges operating in STP compatibility mode will spend six to 40 seconds in
this state.
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After learning, the bridge will place the port in the forwarding state. The port both learns addresses and
participates in frame transfer while in this state.
IMPORTANT!
RUGGEDCOM ROS introduces two more states - Disabled and Link Down. Introduced purely for purposes
of management, these states may be considered subclasses of the RSTP Discarding state. The Disabled
state refers to links for which RSTP has been disabled. The Link Down state refers to links for which
RSTP is enabled but are currently down.
Role
There are four RSTP port roles: Root, Designated, Alternate and Backup. If the bridge is not the root bridge, it must
have a single Root Port. The Root Port is the "best” (i.e. quickest) way to send traffic to the root bridge.
A port is marked as Designated if it is the best port to serve the LAN segment it is connected to. All bridges on the
same LAN segment listen to each others’ messages and agree on which bridge is the Designated Bridge. The ports
of other bridges on the segment must become either Root, Alternate or Backup ports.
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Figure120:Bridge and Port Roles
1.Root Bridge 2.Designated Bridge 3.Designated Port 4.Root Port 5.Alternate Port 6.Backup Port
A port is alternate when it receives a better message from another bridge on the LAN segment it is connected to.
The message that an Alternate Port receives is better than the port itself would generate, but not good enough to
convince it to become the Root Port. The port becomes the alternate to the current Root Port and will become the
new Root Port should the current Root Port fail. The Alternate Port does not participate in the network.
A port is a Backup Port when it receives a better message from the LAN segment it is connected to, originating
from another port on the same bridge. The port is a backup for another port on the bridge and will become active
if that port fails. The Backup Port does not participate in the network.
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Section8.1.1.2
Edge Ports
A port may be designated as an Edge Port if it is directly connected to an end station. As such, it cannot create
bridging loops in the network and can thus directly transition to forwarding, skipping the listening and learning
stages.
Edge ports that receive configuration messages immediately lose their Edge Port status and become normal
spanning tree ports. A loop created on an improperly connected edge port is thus quickly repaired.
Because an Edge Port services only end stations, topology change messages are not generated when its link
toggles.
Section8.1.1.3
Point-to-Point and Multipoint Links
RSTP uses a peer-peer protocol called Proposing-Agreeing to ensure transitioning in the event of a link failure. This
protocol is point-to-point and breaks down in multipoint situations, i.e. when more than two bridges operate on a
shared media link.
If RSTP detects this circumstance (based upon the port’s half duplex state after link up) it will switch off Proposing-
Agreeing. The port must transition through the learning and forwarding states, spending one forward delay in
each state.
There are circumstances in which RSTP will make an incorrect decision about the point-to-point state of the link
simply by examining the half-duplex status, namely:
• The port attaches only to a single partner, but through a half-duplex link.
• The port attaches to a shared media hub through a full-duplex link. The shared media link attaches to more than
one RSTP enabled bridge.
In such cases, the user may configure the bridge to override the half-duplex determination mechanism and force
the link to be treated in the proper fashion.
Section8.1.1.4
Path and Port Costs
The STP path cost is the main metric by which root and designated ports are chosen. The path cost for a
designated bridge is the sum of the individual port costs of the links between the root bridge and that designated
bridge. The port with the lowest path cost is the best route to the root bridge and is chosen as the root port.
NOTE
In actuality the primary determinant for root port selection is the root bridge ID. Bridge ID is important
mainly at network startup when the bridge with the lowest ID is elected as the root bridge. After
startup (when all bridges agree on the root bridge’s ID) the path cost is used to select root ports. If the
path costs of candidates for the root port are the same, the ID of the peer bridge is used to select the
port. Finally, if candidate root ports have the same path cost and peer bridge ID, the port ID of the peer
bridge is used to select the root port. In all cases the lower ID, path cost or port ID is selected as the
best.
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How Port Costs Are Generated
Port costs can be generated either as a result of link auto-negotiation or manual configuration. When the link
auto-negotiation method is used, the port cost is derived from the speed of the link. This method is useful when
a well-connected network has been established. It can be used when the designer is not too concerned with the
resultant topology as long as connectivity is assured.
Manual configuration is useful when the exact topology of the network must be predictable under all
circumstances. The path cost can be used to establish the topology of the network exactly as the designer intends.
STP vs. RSTP Costs
The IEEE 802.1D-1998 specification limits port costs to values of 1 to 65536. Designed at a time when 9600 bps
links were state of the art, this method breaks down in modern use, as the method cannot represent a link speed
higher than 10 gigabits per second.
To remedy this problem in future applications, the IEEE 802.1w specification limits port costs to values of 1 to
20000000, and a link speed up to 10 Tb per second can be represented with a value of 2.
RUGGEDCOM bridges support interoperability with legacy STP bridges by selecting the style to use. In practice,
it makes no difference which style is used as long as it is applied consistently across the network, or if costs are
manually assigned.
Section8.1.1.5
Bridge Diameter
The bridge diameter is the maximum number of bridges between any two possible points of attachment of end
stations to the network.
The bridge diameter reflects the realization that topology information requires time to propagate hop by hop
through a network. If configuration messages take too long to propagate end to end through the network, the
result will be an unstable network.
There is a relationship between the bridge diameter and the maximum age parameter. To achieve extended ring
sizes, Siemens eRSTP™ uses an age increment of ¼ of a second. The value of the maximum bridge diameter is thus
four times the configured maximum age parameter.
NOTE
The RSTP algorithm is as follows:
• STP configuration messages contain age information.
• Messages transmitted by the root bridge have an age of 0. As each subsequent designated bridge
transmits the configuration message it must increase the age by at least 1 second.
• When the age exceeds the value of the maximum age parameter the next bridge to receive the
message immediately discards it.
IMPORTANT!
Raise the value of the maximum age parameter if implementing very large bridged networks or rings.
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Section8.1.1.6
eRSTP
Siemens's enhanced Rapid Spanning Tree Protocol (eRSTP) improves the performance of RSTP in two ways:
• Improves the fault recovery time performance (< 5 ms per hop)
• Improves performance for large ring network topologies (up to 80 switches)
eRSTP is also compatible with standard RSTP for interoperability with commercial switches.
For example, in a network comprised of 15 RUGGEDCOM hardened Ethernet switches in a ring topology, the
expected fault recovery time would be less than 75 ms (i.e. 5 ms x 15). However, with eRSTP, the worst case fault
recovery time is less than 26 ms.
Section8.1.1.7
Fast Root Failover
Siemens’s Fast Root Failover feature is an enhancement to RSTP that may be enabled or disabled. Fast Root
Failover improves upon RSTP’s handling of root bridge failures in mesh-connected networks.
IMPORTANT!
In networks mixing RUGGEDCOM and non-RUGGEDCOM switches, or in those mixing Fast Root Failover
algorithms, RSTP Fast Root Failover will not function properly and root bridge failure will result in an
unpredictable failover time. To avoid potential issues, note the following:
• When using the Robust algorithm, all switches must be RUGGEDCOM switches
• When using the Relaxed algorithm, all switches must be RUGGEDCOM switches, with the exception
of the root switch
• All RUGGEDCOM switches in the network must use the same Fast Root Failover algorithm
Two Fast Root Failover algorithms are available:
•Robust – Guarantees a deterministic root failover time, but requires support from all switches in the network,
including the root switch
•Relaxed – Ensures a deterministic root failover time in most network configurations, but allows the use of a
standard bridge in the root role
NOTE
The minimum interval for root failures is one second. Multiple, near simultaneous root failures (within
less than one second of each other) are not supported by Fast Root Failover.
Fast Root Failover and RSTP Performance
• Running RSTP with Fast Root Failover disabled has no impact on RSTP performance in ring-connected networks.
• Fast Root Failover has no effect on RSTP performance in the case of failures that do not involve the root bridge
or one of its links.
• The extra processing introduced by Fast Root Failover significantly decreases the worst-case failover time due to
root bridge failure in mesh networks.
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Recommendations On the Use of Fast Root Failover
• It is not recommended to enable Fast Root Failover in single ring network topologies.
• It is strongly recommended to always connect the root bridge to each of its neighbor bridges using more than
one link when enabled in ring-connected networks.
Section8.1.2
RSTP Applications
This section describes various applications of RSTP.
CONTENTS
•Section8.1.2.1, “RSTP in Structured Wiring Configurations”
•Section8.1.2.2, “RSTP in Ring Backbone Configurations”
•Section8.1.2.3, “RSTP Port Redundancy”
Section8.1.2.1
RSTP in Structured Wiring Configurations
RSTP may be used to construct structured wiring systems where connectivity is maintained in the event of link
failures. For example, a single link failure of any link between A and N in Figure 121 would leave all the ports of
bridges 555 through 888 connected to the network.
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Figure121:Example - Structured Wiring Configuration
To design a structured wiring configuration, do the following:
1. Select the design parameters for the network.
What are the requirements for robustness and network failover/recovery times? Are there any special
requirements for diverse routing to a central host computer? Are there any special port redundancy
requirements?
2. Identify required legacy support.
Are STP bridges used in the network? These bridges do not support rapid transitioning to forwarding. If these
bridges are present, can they be re-deployed closer to the network edge?
3. Identify edge ports and ports with half-duplex/shared media restrictions.
Ports that connect to host computers, Intelligent Electronic Devices (IEDs) and controllers may be set to edge
ports to guarantee rapid transitioning to forwarding as well as to reduce the number of topology change
notifications in the network. Ports with half-duplex/shared media restrictions require special attention to
guarantee that they do not cause extended fail-over/recovery times.
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4. Choose the root bridge and backup root bridge carefully.
The root bridge should be selected to be at the concentration point of network traffic. Locate the backup root
bridge adjacent to the root bridge. One strategy that may be used is to tune the bridge priority to establish
the root bridge and then tune each bridge’s priority to correspond to its distance from the root bridge.
5. Identify desired steady state topology.
Identify the desired steady state topology taking into account link speeds, offered traffic and QOS. Examine of
the effects of breaking selected links, taking into account network loading and the quality of alternate links.
6. Decide upon a port cost calculation strategy.
Select whether fixed or auto-negotiated costs should be used? It is recommended to use the auto-negotiated
cost style, unless it is necessary for the network design to change the auto-negotiated cost style. Select
whether the STP or RSTP cost style should be used. Make sure to configure the same cost style on all devices
on the network.
7. Enable RSTP Fast Root Failover option.
This is a proprietary feature of Siemens. In a mesh network with only RUGGEDCOM devices in the core of the
network, it is recommended to enable the RSTP Fast Root Failover option to minimize the network downtime
in the event of a Root bridge failure.
8. Calculate and configure priorities and costs.
9. Implement the network and test under load.
Section8.1.2.2
RSTP in Ring Backbone Configurations
RSTP may be used in ring backbone configurations where rapid recovery from link failure is required. In normal
operation, RSTP will block traffic on one of the links, for example, as indicated by the double bars through link H
in Figure 122. In the event of a failure on link D, bridge 444 will unblock link H. Bridge 333 will communicate with
the network through link F.
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Figure122:Example - Ring Backbone Configuration
To design a ring backbone configuration with RSTP, do the following:
1. Select the design parameters for the network.
What are the requirements for robustness and network fail-over/recovery times? Typically, ring backbones are
chosen to provide cost effective but robust network designs.
2. Identify required legacy support and ports with half-duplex/shared media restrictions.
These bridges should not be used if network fail-over/recovery times are to be minimized.
3. Identify edge ports.
Ports that connect to host computers, Intelligent Electronic Devices (IEDs) and controllers may be set to edge
ports to guarantee rapid transitioning to forwarding as well as to reduce the number of topology change
notifications in the network.
4. Choose the root bridge.
The root bridge can be selected to equalize either the number of bridges, number of stations or amount of
traffic on either of its legs. It is important to realize that the ring will always be broken in one spot and that
traffic always flows through the root.
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5. Assign bridge priorities to the ring.
The strategy that should be used is to assign each bridge’s priority to correspond to its distance from the root
bridge. If the root bridge is assigned the lowest priority of 0, the bridges on either side should use a priority
of 4096 and the next bridges 8192 and so on. As there are 16 levels of bridge priority available, this method
provides for up to 31 bridges in the ring.
6. Decide upon a port cost calculation strategy.
It is recommended to use the auto-negotiated cost style, unless it is necessary for the network design to
change the auto-negotiated cost style. Select whether the STP or RSTP cost style should be used. Make sure to
configure the same cost style on all devices on the network.
7. Disable RSTP Fast Root Failover option.
This is a proprietary feature of Siemens. In RUGGEDCOM ROS, the RSTP Fast Root Failover option is enabled by
default. It is recommended to disable this feature when operating in a Ring network.
8. Implement the network and test under load.
Section8.1.2.3
RSTP Port Redundancy
In cases where port redundancy is essential, RSTP allows more than one bridge port to service a LAN. In the
following example, if port 3 is designated to carry the network traffic of LAN A, port 4 will block traffic. Should an
interface failure occur on port 3, port 4 will assume control of the LAN.
A
1 2
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Figure123:Example - Port Redundancy
Section8.1.3
Configuring STP Globally
To configure global settings for the Spanning Tree Protocol (STP), do the following:
1. Navigate to Spanning Tree» Configure Bridge RSTP Parameters. The Bridge RSTP Parameters form
appears.
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Figure124:Bridge RSTP Parameters Form
1.State Options 2.Version Support List 3.Bridge Priority List 4.Hello Time Box 5.Max Age Time Box 6.Transmit Count Box
7.Forward Delay Box 8.Max Hops Box 9.Apply Button 10.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
State Synopsis: { Disabled, Enabled }
Default: Enabled
Enable STP/RSTP for the bridge globally. Note that STP/RSTP is enabled on a port when it
is enabled globally and along with enabling per port setting.
Version Support Synopsis: { STP, RSTP }
Default: RSTP
Selects the version of Spanning Tree Protocol to support, either only STP or Rapid STP.
Bridge Priority Synopsis: { 0, 4096, 8192, 12288, 16384, 20480, 24576, 28672, 32768, 36864,
40960, 45056, 49152, 53248, 57344, 61440 }
Default: 32768
Bridge Priority provides a way to control the topology of the STP connected network.
The desired Root and Designated bridges can be configured for a particular topology.
The bridge with the lowest priority will become root. In the event of a failure of the
root bridge, the bridge with the next lowest priority will then become root. Designated
bridges that (for redundancy purposes) service a common LAN also use priority to
determine which bridge is active. In this way careful selection of Bridge Priorities can
establish the path of traffic flows in normal and abnormal conditions.
Hello Time Synopsis: 1 to 10 s
Default: 2 s
Time between configuration messages issued by the root bridge. Shorter hello times
result in faster detection of topology changes at the expense of moderate increases in
STP traffic.
Max Age Time Synopsis: 6 to 40 s
Default: 20 s
The time for which a configuration message remains valid after being issued by the root
bridge. Configure this parameter with care when many tiers of bridges exist, or slow
speed links (such as those used in WANs) are part of the network
Transmit Count Synopsis: 3 to 100 or { Unlimited }
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Parameter Description
Default: Unlimited
Maximum number of BPDUs on each port that may be sent in one second. Larger values
allow the network to recover from failed links/bridges more quickly.
Forward Delay Synopsis: 4 to 30 s
Default: 15 s
The amount of time a bridge spends learning MAC addresses on a rising port before
beginning to forward traffic. Lower values allow the port to reach the forwarding state
more quickly, but at the expense of flooding unlearned addresses to all ports.
Max Hops Synopsis: 6 to 40
Default: 20
Only applicable to MSTP. The maximum possible bridge diameter inside an MST region.
MSTP BPDUs propagating inside an MST region specify a time-to-live that is decremented
by every switch that propagates the BPDU. If the maximum number of hops inside the
region exceeds the configured maximum, BPDUs may be discarded due to their time-to-
live setting.
3. Click Apply.
Section8.1.4
Configuring STP for Specific Ethernet Ports
To configure the Spanning Tree Protocol (STP) for a specific Ethernet port, do the following:
1. Navigate to Spanning Tree» Configure Port RSTP Parameters. The Port RSTP Parameters table appears.
Figure125:Port RSTP Parameters Table
2. Select an Ethernet port. The Port RSTP Parameters form appears.
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Figure126:Port RSTP Parameters Form
1.Port(s) Box 2.Enabled Options 3.Priority List 4.STP Cost Box 5.RSTP Cost Box 6.Edge Port List 7.Point to Point List
8.Restricted Role Box 9.Restricted TCN Box 10.Apply Button 11.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Port(s) Synopsis: Any combination of numbers valid for this parameter
The port number as seen on the front plate silkscreen of the switch (or a list of ports, if
aggregated in a port trunk).
Enabled Synopsis: { Disabled, Enabled }
Default: Enabled
Enabling STP activates the STP or RSTP protocol for this port per the configuration in the
STP Configuration menu. STP may be disabled for the port ONLY if the port does not
attach to an STP enabled bridge in any way. Failure to meet this requirement WILL result
in an undetectable traffic loop in the network. A better alternative to disabling the port
is to leave STP enabled but to configure the port as an edge port. A good candidate for
disabling STP would be a port that services only a single host computer.
Priority Synopsis: { 0, 16, 32, 48, 64, 80, 96, 112, 128, 144, 160, 176, 194, 208, 224, 240 }
Default: 128
Selects the STP port priority. Ports of the same cost that attach to a common LAN will
select the port to be used based upon the port priority.
STP Cost Synopsis: 0 to 65535 or { Auto }
Default: Auto
Selects the cost to use in cost calculations, when the Cost Style parameter is set to STP in
the Bridge RSTP Parameters configuration. Setting the cost manually provides the ability
to preferentially select specific ports to carry traffic over others. Leave this field set to
"auto" to use the standard STP port costs as negotiated (4 for 1Gbps, 19 for 100 Mbps
links and 100 for 10 Mbps links).
For MSTP, this parameter applies to both external and internal path cost.
RSTP Cost Synopsis: 0 to 2147483647 or { Auto }
Default: Auto
Selects the cost to use in cost calculations, when the Cost Style parameter is set to RSTP
in the Bridge RSTP Parameters configuration. Setting the cost manually provides the
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Parameter Description
ability to preferentially select specific ports to carry traffic over others. Leave this field set
to "auto" to use the standard RSTP port costs as negotiated (20,000 for 1Gbps, 200,000
for 100 Mbps links and 2,000,000 for 10 Mbps links).
Edge Port Synopsis: { False, True, Auto }
Default: Auto
Edge ports are ports that do not participate in the Spanning Tree, but still send
configuration messages. Edge ports transition directly to frame forwarding without
any listening and learning delays. The MAC tables of Edge ports do not need to be
flushed when topology changes occur in the STP network. Unlike an STP disabled port,
accidentally connecting an edge port to another port in the spanning tree will result in
a detectable loop. The "Edgeness" of the port will be switched off and the standard RSTP
rules will apply (until the next link outage).
Point to Point Synopsis: { False, True, Auto }
Default: Auto
RSTP uses a peer-to-peer protocol that provides rapid transitioning on point-to-point
links. This protocol is automatically turned off in situations where multiple STP bridges
communicate over a shared (non point-to-point) LAN. The bridge will automatically take
point-to-point to be true when the link is found to be operating in full-duplex mode. The
point-to-point parameter allows this behavior or overrides it, forcing point-to-point to
be true or false. Force the parameter true when the port operates a point-to-point link
but cannot run the link in full-duplex mode. Force the parameter false when the port
operates the link in full-duplex mode, but is still not point-to-point (e.g. a full-duplex link
to an unmanaged bridge that concentrates two other STP bridges).
Restricted Role Synopsis: { True or False }
Default: False
A boolean value set by management. If TRUE, causes the Port not to be selected as the
Root Port for the CIST or any MSTI, even if it has the best spanning tree priority vector.
Such a Port will be selected as an Alternate Port after the Root Port has been selected.
This parameter should be FALSE by default. If set, it can cause a lack of spanning tree
connectivity. It is set by a network administrator to prevent bridges that are external to
a core region of the network from influencing the spanning tree active topology. This
may be necessary, for example, if those bridges are not under the full control of the
administrator.
Restricted TCN Synopsis: { True or False }
Default: False
A boolean value set by management. If TRUE, it causes the Port not to propagate
received topology change notifications and topology changes to other Ports. If set,
it can cause temporary loss of connectivity after changes in a spanning tree’s active
topology as a result of persistent, incorrectly learned, station location information. It is
set by a network administrator to prevent bridges that are external to a core region of
the network from causing address flushing in that region. This may be necessary, for
example, if those bridges are not under the full control of the administrator or if the
MAC_Operational status parameter for the attached LANs transitions frequently.
4. Click Apply.
Section8.1.5
Configuring eRSTP
To configure eRSTP, do the following:
1. Navigate to Spanning Tree» Configure eRSTP Parameters. The eRSTP Parameters form appears.
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Figure127:eRSTP Parameters Form
1.Max Network Diameter Options 2.BPDU Guart Timeout Box 3.Fast Root Failover List 4.IEEE802.1w Interoperability Options
5.Cost Style Options 6.Apply Button 7.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
Max Network Diameter Synopsis: { MaxAgeTime, 4*MaxAgeTime }
Default: 4*MaxAgeTime
The RSTP standard puts a limit on the maximum network size that can be controlled
by the RSTP protocol. The network size is described by the term 'maximum network
diameter', which is the number of switches that comprise the longest path that RSTP
BPDUs have to traverse. The standard supported maximum network diameter is equal to
the value of the 'MaxAgeTime' RSTP configuration parameter.
eRSTP offers an enhancement to RSTP which allows it to cover networks larger than ones
defined by the standard.
This configuration parameter selects the maximum supported network size.
BPDU Guard Timeout Synopsis: 1 to 86400 s or { Until reset, Don't shutdown }
Default: Don't shutdown
The RSTP standard does not address network security. RSTP must process every received
BPDU and take an appropriate action. This opens a way for an attacker to influence RSTP
topology by injecting RSTP BPDUs into the network.
BPDU Guard is a feature that protects the network from BPDUs received by a port where
RSTP capable devices are not expected to be attached. If a BPDU is received by a port for
which 'Edge' parameter is set to 'TRUE' or RSTP is disabled, the port will be shutdown for
the time period specified by this parameter.
• DON'T SHUTDOWN - BPDU Guard is disabled
• UNTIL RESET - port will remain shutdown until the port reset command is issued by the
user
Fast Root Failover Synopsis: { On, On with standard root, Off }
Default: On
In mesh network topologies, the standard RSTP algorithm does not guarantee
deterministic network recovery time in the case of a root switch failure. Such a recovery
time is hard to calculate and it can be different (and may be relatively long) for any given
mesh topology.
This configuration parameter enables Siemens's enhancement to RSTP which detects a
failure of the root switch and performs some extra RSTP processing steps, significantly
reducing the network recovery time and making it deterministic.
NOTE
• This feature is only available in RSTP mode.
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Parameter Description
• In a single ring topology, this feature is not needed and should be
disabled to avoid longer network recovery times due to extra RSTP
processing.
The Fast Root Failover algorithm must be supported by all switches in the network,
including the root, to guarantee optimal performance. However, it is not uncommon
to assign the root role to a switch from a vendor different from the rest of the switches
in the network. In other words, it is possible that the root might not suport the Fast
Root Failover algorithm. In such a scenario, a "relaxed" algorithm should be used, which
tolerates the lack of support in the root switch.
These are the supported configuration options:
• Off - Fast Root Failover algorithm is disabled and hence a root switch failure may result
in excessive connectivity recovery time.
• On - Fast Root Failover is enabled and the most robust algorithm is used, which
requires the appropriate support in the root switch.
• On with standard root - Fast Root Failover is enabled but a "relaxed" algorithm is used,
allowing the use of a standard switch in the root role.
IEEE802.1w Interoperability Synopsis: { On, Off }
Default: On
The original RSTP protocol defined in the IEEE 802.1w standard has minor differences
from more recent, enhanced, standard(s). Those differences cause interoperability issues
which, although they do not completely break RSTP operation, can lead to a longer
recovery time from failures in the network.
eRSTP offers some enhancements to the protocol which make the switch fully
interoperable with other vendors' switches, which may be running IEEE 802.2w RSTP.
The enhancements do not affect interoperability with more recent RSTP editions.
This configuration parameter enables the aforementioned interoperability mode.
Cost Style Synopsis: { STP (16 bit), RSTP (32 bit) }
Default: STP (16 bit)
The RSTP standard defines two styles of a path cost value. STP uses 16-bit path costs
based upon 1x10E9/link speed (4 for 1Gbps, 19 for 100 Mbps and 100 for 10 Mbps)
whereas RSTP uses 32-bit costs based upon 2x10E13/link speed (20,000 for 1Gbps,
200,000 for 100 Mbps and 2,000,000 for 10 Mbps). However, switches from some
vendors keep using the STP path cost style even in RSTP mode, which can cause
confusion and interoperability problems.
This configuration parameter selects the style of link costs to employ.
Note that RSTP link costs are used only when the bridge version support is set to allow
RSTP and the port does not migrate to STP.
3. Click Apply.
Section8.1.6
Viewing Global Statistics for STP
To view global statistics for STP, navigate to Spanning Tree» View Bridge RSTP Statistics. The Bridge RSTP
Statistics form appears.
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180 Viewing Global Statistics for STP
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Figure128:Bridge RSTP Statistics Form
1.Bridge Status Box 2.Bridge ID Box 3.Root ID Box 4.Root Port Box 5.Root Path Cost Box 6.Configure Hello Time Box 7.Learned
Hello Time Box 8.Configured Forward Delay Box 9.Learned Forward Delay Box 10.Configured Max Age Box 11.Learned Max Age
Box 12.Total Topology Changes Box 13.Time Since Last TC Box 14.Reload Button
This table displays the following information:
Parameter Description
Bridge Status Synopsis: { , Designated Bridge, Not Designated For Any LAN, Root Bridge }
Spanning Tree status of the bridge. The status may be root or designated. This field may
show text saying not designated for any LAN if the bridge is not designated for any of its
ports.
Bridge ID Synopsis: $$ / ##-##-##-##-##-## where $$ is 0 to 65535, ## is 0 to FF
Bridge Identifier of this bridge.
Root ID Synopsis: $$ / ##-##-##-##-##-## where $$ is 0 to 65535, ## is 0 to FF
Bridge Identifier of the root bridge.
Root Port Synopsis: 1 to maximum port number or { <empty string> }
If the bridge is designated, this is the port that provides connectivity towards the root bridge
of the network.
Root Path Cost Synopsis: 0 to 4294967295
Total cost of the path to the root bridge composed of the sum of the costs of each link in the
path. If custom costs have not been configured. 1Gbps ports will contribute 4, 100 Mbps
ports will contribute 19 and 10 Mbps ports will contribute a cost of 100 to this figure.
Configured Hello Time Synopsis: 0 to 65535
The configured Hello time from the Bridge RSTP Parameters menu.
Learned Hello Time Synopsis: 0 to 65535
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Viewing STP Statistics for Ethernet Ports 181
Parameter Description
The actual Hello time provided by the root bridge as learned in configuration messages. This
time is used in designated bridges.
Configured Forward Delay Synopsis: 0 to 65535
The configured Forward Delay time from the Bridge RSTP Parameters menu.
Learned Forward Delay Synopsis: 0 to 65535
The actual Forward Delay time provided by the root bridge as learned in configuration
messages. This time is used in designated bridges.
Configured Max Age Synopsis: 0 to 65535
The configured Maximum Age time from the Bridge RSTP Parameters menu.
Learned Max Age Synopsis: 0 to 65535
The actual Maximum Age time provided by the root bridge as learned in configuration
messages. This time is used in designated bridges.
Total Topology Changes Synopsis: 0 to 65535
A count of topology changes in the network, as detected on this bridge through link failures
or as signaled from other bridges. Excessively high or rapidly increasing counts signal
network problems.
Time since Last TC Synopsis: DDDD days, HH:MM:SS
The time since the last time a topology change was detected by the bridge.
Section8.1.7
Viewing STP Statistics for Ethernet Ports
To view STP statistics for Ethernet ports, navigate to Spanning Tree» View Port RSTP Statistics. The Port RSTP
Statistics table appears.
Figure129:Port RSTP Statistics Table
This table displays the following information:
Parameter Description
Port(s) Synopsis: Any combination of numbers valid for this parameter
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182 Viewing STP Statistics for Ethernet Ports
Parameter Description
The port number as seen on the front plate silkscreen of the switch (or a list of ports, if
aggregated in a port trunk).
Status Synopsis: { Disabled, Listening, Learning, Forwarding, Blocking, Link Down, Discarding }
Status of this port in Spanning Tree. This may be one of the following:
•Disabled - STP is disabled on this port.
•Link Down - STP is enabled on this port but the link is down.
•Discarding - The link is not used in the STP topology but is standing by.
•Learning - The port is learning MAC addresses in order to prevent flooding when it begins
forwarding traffic.
•Forwarding - The port is forwarding traffic.
Role Synopsis: { , Root, Designated, Alternate, Backup, Master }
Role of this port in Spanning Tree. This may be one of the following:
•Designated - The port is designated for (i.e. carries traffic towards the root for) the LAN it
is connected to.
•Root - The single port on the bridge, which provides connectivity towards the root bridge.
•Backup - The port is attached to a LAN that is serviced by another port on the bridge. It is
not used but is standing by.
•Alternate - The port is attached to a bridge that provides connectivity to the root bridge. It
is not used but is standing by.
•Master - Only exists in MSTP. The port is an MST region boundary port and the single
port on the bridge, which provides connectivity for the Multiple Spanning Tree Instance
towards the Common Spanning Tree root bridge (i.e. this port is the root port for the
Common Spanning Tree Instance).
Cost Synopsis: 0 to 4294967295
Cost offered by this port. If the Bridge RSTP Parameters Cost Style is set to STP, 1Gbps ports
will contribute 4, 100 Mbps ports will contribute 19 and 10 Mbps ports contribute a cost
of 100. If the Cost Style is set to RSTP, 1Gbps will contribute 20,000, 100 Mbps ports will
contribute a cost of 200,000 and 10 Mbps ports contribute a cost of 2,000,000. Note that
even if the Cost style is set to RSTP, a port that migrates to STP will have its cost limited to a
maximum of 65535.
RX RSTs Synopsis: 0 to 4294967295
The count of RSTP configuration messages received on this port.
TX RSTs Synopsis: 0 to 4294967295
The count of RSTP configuration messages transmitted on this port.
RX Configs Synopsis: 0 to 4294967295
The count of STP configuration messages received on this port.
TX Configs Synopsis: 0 to 4294967295
The count of STP configuration messages transmitted on this port.
RX Tcns Synopsis: 0 to 4294967295
The count of STP topology change notification messages received on this port. Excessively
high or rapidly increasing counts signal network problems.
TX Tcns Synopsis: 0 to 4294967295
The count of STP topology change notification messages transmitted on this port.
Desig Bridge ID Synopsis: $$ / ##-##-##-##-##-## where $$ is 0 to 65535, ## is 0 to FF
Provided on the root ports of designated bridges, the Bridge Identifier of the bridge this port
is connected to.
operEdge Synopsis: True or False
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Clearing Spanning Tree Protocol Statistics 183
Parameter Description
The port is operating as an edge port or not.
Section8.1.8
Clearing Spanning Tree Protocol Statistics
To clear all spanning tree protocol statistics, do the following:
1. Navigate to Spanning Tree» Clear Spanning Tree Statistics. The Clear Spanning Tree Statistics form
appears.
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Figure130:Clear Spanning Tree Statistics Form
1.Confirm Button
2. Click Confirm.
Chapter 8
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RUGGEDCOM ROS
User Guide
Chapter 9
Traffic Control and Classification
Managing Classes of Service 185
Traffic Control and Classification
Use the traffic control and classification subsystems to control the flow of data packets to connected network
interfaces.
CONTENTS
•Section9.1, “Managing Classes of Service”
Section9.1
Managing Classes of Service
Classes of Service (CoS) provides the ability to expedite the transmission of certain frames and port traffic
over others. The CoS of a frame can be set to Normal or Critical. By default, other than the control frames,
RUGGEDCOM ROS enforces Normal CoS for all incoming traffic received without a priority tag.
IMPORTANT!
Use the highest supported CoS with caution, as it is always used by the switch for handling network
management traffic, such as RSTP BPDUs.
If this CoS is used for regular network traffic, upon traffic bursts, it may result in the loss of some
network management frames, which in turn may result in the loss of connectivity over the network.
The process of controlling traffic based on CoS occurs over two phases:
1. Inspection Phase
In the inspection phase, the CoS priority of a received frame is determined from either:
• A specific CoS based upon the destination MAC address (as set in the Static MAC Address Table)
• The priority field in the IEEE 802.1Q tags
• The Differentiated Services Code Point (DSCP) component of the Type Of Service (TOS) field in the IP
header, if the frame is IP
• The default CoS for the port
NOTE
For information on how to configure the Inspect TOS parameter, refer to Section9.1.2,
“Configuring Classes of Service for Specific Ethernet Ports”.
Received frames are first examined to determine if their destination MAC address is found in the Static MAC
Address Table. If they are, the CoS configured for the static MAC address is used. If the destination MAC
address is in the Static MAC Address Table, the frame is then examined for IEEE 802.1Q tags and the priority
field is mapped to a CoS. If a tag is not present, the frame is examined to determine if it is an IP frame. If the
frame is an IP frame and Inspect TOS is enabled in RUGGEDCOM ROS, the CoS is determined from the DSCP
field. If the frame is not an IP frame or Inspect TOS is disabled, the default CoS for the port is used.
After inspection, the frame is forwarded to the egress port for transmission.
Chapter 9
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186 Configuring Classes of Service Globally
2. Forwarding Phase
Once the CoS of the frame is determined, the frame is forwarded to the egress port, where it is collected into
one of the priority queues according to the assigned CoS.
CoS weighting selects the degree of preferential treatment that is attached to different priority queues. The
ratio of the number of higher CoS to lower CoS frames transmitted can be configured. If desired, lower CoS
frames can be transmitted only after all higher CoS frames have been serviced.
Upon transmission, a new priority level can also be assigned to a frame based on its assigned CoS if it was
originally received untagged. For more information about mapping priority levels to outbound frames, refer to
Section9.1.4, “Configuring CoS to Priority Mapping”.
CONTENTS
•Section9.1.1, “Configuring Classes of Service Globally”
•Section9.1.2, “Configuring Classes of Service for Specific Ethernet Ports”
•Section9.1.3, “Configuring Priority to CoS Mapping”
•Section9.1.4, “Configuring CoS to Priority Mapping”
•Section9.1.5, “Configuring DSCP to CoS Mapping”
Section9.1.1
Configuring Classes of Service Globally
To configure global settings for Classes of Service (CoS), do the following:
1. Navigate to Classes of Service» Configure Global CoS Parameters. The Global CoS Parameters form
appears.
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Figure131:Global CoS Parameters Form
1.CoS Weighting List 2.Apply Button 3.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
CoS Weighting Synopsis: { 1:1, 2:1, 4:1, 6:1, 8:1, 10:1, 12:1, 1:0 }
Default: 2:1
During traffic bursts, frames queued in the switch pending transmission on a port
may have different CoS priorities. This parameter specifies weighting algorithm for
transmitting different priority CoS frames.
Examples:
• 1:1 - 1 Critical priority CoS frame and 1 Normal priority CoS frame
• 6:1 - 6 Critical priority CoS frames and 1 Normal priority CoS frame
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Traffic Control and Classification
Configuring Classes of Service for Specific Ethernet Ports 187
Parameter Description
• 1:0 - Normal priority CoS frames will be only transmitted after all Critical priority CoS
frames have been transmitted
3. Click Apply.
4. If necessary, configure CoS mapping based on either the IEEE 802.1p priority or Differentiated Services (DS)
field set in the IP header for each packet. For more information, refer to Section9.1.3, “Configuring Priority to
CoS Mapping” or Section9.1.5, “Configuring DSCP to CoS Mapping”.
Section9.1.2
Configuring Classes of Service for Specific Ethernet Ports
To configure Classes of Service (CoS) for one or more Ethernet ports, do the following:
1. Navigate to Classes of Service» Configure Port CoS Parameters. The Port CoS Parameters table appears.
Figure132:Port CoS Parameters Table
2. Select an Ethernet port. The Port CoS Parameters form appears.
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Figure133:Port CoS Parameters Form
1.Port(s) Box 2.Default CoS Options 3.Inspect TOS Options 4.Apply Button 5.Reload Button
3. Configure the following parameter(s) as required:
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188 Configuring Priority to CoS Mapping
Parameter Description
Port(s) Synopsis: Any combination of numbers valid for this parameter
The port number as seen on the front plate silkscreen of the switch (or a list of ports, if
aggregated in a port trunk).
Default CoS Synopsis: { Normal, Crit }
Default: Normal
This parameter allows to prioritize frames received on this port that are not prioritized
based on the frames contents (e.g. priority field in the VLAN tag, DiffServ field in the IP
header, prioritized MAC address).
Inspect TOS Synopsis: { No, Yes }
Default: No
This parameters enables or disables parsing of the Type-Of-Service (TOS) field in the
IP header of the received frames to determine what Class of Service they should be
assigned. When TOS parsing is enabled the switch will use the Differentiated Services bits
in the TOS field.
4. Click Apply.
Section9.1.3
Configuring Priority to CoS Mapping
Frames received untagged can be automatically assigned a CoS based on their priority level.
To map a priority level to a CoS, do the following:
1. Navigate to Classes of Service» Configure Priority to CoS Mapping. The Priority to CoS Mapping table
appears.
Figure134:Priority to CoS Mapping Table
2. Select a priority level. The Priority to CoS Mapping form appears.
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Chapter 9
Traffic Control and Classification
Configuring CoS to Priority Mapping 189
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Figure135:Priority to CoS Mapping Form
1.Priority Box 2.CoS Options 3.Apply Button 4.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Priority Synopsis: 0 to 7
Default: 0
Value of the IEEE 802.1p priority.
CoS Synopsis: { Normal, Crit }
Default: Normal
CoS assigned to received tagged frames with the specified IEEE 802.1p priority value.
4. Click Apply.
Section9.1.4
Configuring CoS to Priority Mapping
Frames that were received originally untagged and need to be VLAN tagged before being transmitted from a
tagged port, can be automatically assigned a priority value based on the CoS assigned to them internally by
RUGGEDCOM ROS. The mapping between the internal CoS assignment to the external priority value is done based
on the configuration of the CoS access priorities.
To configure rules for CoS-to-priority mapping, do the following:
1. Navigate to Classes of Service» Configure Access Priorities. The Access Priorities table appears.
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190 Configuring CoS to Priority Mapping
Figure136:Access Priorities Table
2. Select a port. The Access Priorities form appears.
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Figure137:Access Priorities Form
1.Priority Box 2.CoS Options 3.Apply Button 4.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Port(s) Synopsis: Comma-separated list of ports
The port number as seen on the front plate silkscreen of the switch (or a list of ports, if
aggregated in a port trunk).
Normal Access Priority Synopsis: 0 to 7
Default: 0
When frames that were originally received untagged are transmitted from a tagged port
the switch will insert 802.1Q VLAN tags. This parameter specifies the value the switch
will insert into the priority field of the tag, if the frame was assigned Normal priority Class
of Service upon receiving and is getting tagged upon transmission from the specified
port. This parameter does not affect frames that were originally received tagged.
Crit Access Priority Synopsis: 0 to 7
Default: 4
When frames that were originally received untagged are transmitted from a tagged port
the switch will insert 802.1Q VLAN tags. This parameter specifies the value the switch
will insert into the priority field of the tag, if the frame was assigned Critical priority Class
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Chapter 9
Traffic Control and Classification
Configuring DSCP to CoS Mapping 191
Parameter Description
of Service upon receiving and is getting tagged upon transmission from the specified
port. This parameter does not affect frames that were originally received tagged.
4. Click Apply.
Section9.1.5
Configuring DSCP to CoS Mapping
Mapping CoS to the Differentiated Services (DS) field set in the IP header for each packet is done by defining
Differentiated Services Code Points (DSCPs) in the CoS configuration.
To map a DSCP to a Class of Service, do the following:
1. Navigate to Classes of Service» Configure DSCP to CoS Mapping. The DSCP to CoS Mapping table
appears.
Figure138:DSCP to CoS Mapping Table
2. Select a DSCP level. The DSCP to CoS Mapping form appears.
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Figure139:DSCP to CoS Mapping Form
1.DSCP Box 2.CoS Options 3.Apply Button 4.Reload Button
3. Configure the following parameter(s) as required:
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192 Configuring DSCP to CoS Mapping
Parameter Description
DSCP Synopsis: 0 to 63
Default: 0
Differentiated Services Code Point (DSCP) - a value of the 6 bit DiffServ field in the Type-
Of-Service (TOS) field of the IP header.
CoS Synopsis: { Normal, Crit }
Default: Normal
Class of Service assigned to received frames with the specified DSCP.
4. Click Apply.
5. Configure the CoS parameters on select switched Ethernet ports as needed. For more information, refer to
Section9.1.2, “Configuring Classes of Service for Specific Ethernet Ports”.
RUGGEDCOM ROS
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Chapter 10
Time Services
Configuring the Time and Date 193
Time Services
This chapter describes the time-keeping and time synchronization features in RUGGEDCOM ROS.
CONTENTS
•Section10.1, “Configuring the Time and Date”
•Section10.2, “Managing NTP”
Section10.1
Configuring the Time and Date
To set the time, date and other time-keeping related parameters, do the following:
1. Navigate to Administration» System Time Manager» Configure Time and Date. The Time and Date form
appears.
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Figure140:Time and Date Form
1.Time 2.Date 3.Time Zone 4.DST Offset 5.DST Rule 6.Apply Button 7.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
Time Synopsis: HH:MM:SS
This parameter allows for both the viewing and setting of the local time.
Date Synopsis: MMM DD, YYYY
This parameter allows for both the viewing and setting of the local date.
Time Zone Synopsis: { UTC-12:00 (Eniwetok, Kwajalein), UTC-11:00 (Midway Island, Samoa),
UTC-10:00 (Hawaii), UTC-9:00 (Alaska), UTC-8:00 (Los Angeles, Vancouver), UTC-7:00
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194 Managing NTP
Parameter Description
(Calgary, Denver), UTC-6:00 (Chicago, Mexico City), UTC-5:00 (New York, Toronto),
UTC-4:30 (Caracas), UTC-4:00 (Santiago), UTC-3:30 (Newfoundland), UTC-3:00 (Brasilia,
Buenos Aires), UTC-2:00 (Mid Atlantic), UTC-1:00 (Azores), UTC-0:00 (Lisbon, London),
UTC+1:00 (Berlin, Paris, Rome), ... }
Default: UTC-5:00 (New York, Toronto)
This setting allows for the conversion of UTC (Universal Coordinated Time) to local time.
DST Offset Synopsis: HH:MM:SS
Default: 00:00:00
This parameter specifies the amount of time to be shifted forward/backward when DST
begins and ends. For example for most part of USA and Canada, DST time shift is 1 hour
(01:00:00) forward when DST begins and 1 hour backward when DST ends.
DST Rule Synopsis: mm.n.d/HH:MM:SS mm.n.d/HH:MM:SS
This parameter specifies a rule for time and date when the transition between Standard
and Daylight Saving Time occurs.
• mm - Month of the year (01 - January, 12 - December)
• n - nth d-day in the month (1 - 1st d-day, 5 - 5th/last d-day)
• d - day of the week (0 - Sunday, 6 - Saturday)
• HH - hour of the day (0 - 24)
• MM - minute of the hour (0 - 59)
• SS - second of the minute (0 - 59)
Example: The following rule applies in most part of USA and Canada:
03.2.0/02:00:00 11.1.0/02:00:00
DST begins on March's 2nd Sunday at 2:00am.
DST ends on November's 1st Sunday at 2:00am.
Section10.2
Managing NTP
RUGGEDCOM ROS may be configured to refer periodically to a specified NTP server to correct any accumulated
drift in the on-board clock. RUGGEDCOM ROS will also serve time via the Simple Network Time Protocol (SNTP) to
hosts that request it.
Two NTP servers (primary and backup) may be configured for the device. The primary server is contacted first for
each attempt to update the system time. If the primary server fails to respond, the backup server is contacted. If
either the primary or backup server fails to respond, an alarm is raised.
CONTENTS
•Section10.2.1, “Enabling/Disabling NTP Service”
•Section10.2.2, “Configuring NTP Servers”
Section10.2.1
Enabling/Disabling NTP Service
To enable or disable NTP Service, do the following:
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Chapter 10
Time Services
Configuring NTP Servers 195
NOTE
If the device is running as an NTP server, NTP service must be enabled.
1. Navigate to Administration» System Time Manager» Configure NTP» Configure NTP Service. The SNTP
Parameters form appears.
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Figure141:SNTP Parameters Form
1.SNTP Options 2.Apply Button 3.Reload Button
2. Select Enabled to enable SNTP, or select Disabled to disable SNTP.
3. Click Apply.
Section10.2.2
Configuring NTP Servers
To configure either the primary or backup NTP server, do the following:
1. Navigate to Administration» System Time Manager» Configure NTP» Configure NTP Servers. The NTP
Servers table appears.
Figure142:NTP Servers Table
2. Select either Primary or Backup. The NTP Servers form appears.
Chapter 10
Time Services
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196 Configuring NTP Servers
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Figure143:NTP Servers Form
1.Server Box 2.IP Address Box 3.Reachable Box 4.Update Period Box 5.Apply Button 6.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Server Synopsis: Any 8 characters
Default: Primary
This field tells whether this configuration is for a Primary or a Backup Server.
IP Address Synopsis: ###.###.###.### where ### ranges from 0 to 255
The Server IP Address.
Reachable Synopsis: { No, Yes }
Shows the status of the server.
Update Period Synopsis: 1 to 1440 min
Default: 60 min
Determines how frequently the (S)NTP server is polled for a time update.If the server
cannot be reached in three attempts that are made at one minute intervals an alarm is
generated.
4. Click Apply.
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Chapter 11
Network Discovery and Management
Enabling/Disabling RCDP 197
Network Discovery and
Management
RUGGEDCOM ROS supports the following protocols for automatic network discovery, monitoring and device
management:
•RUGGEDCOM Discovery Protocol (RCDP)
Use RCDP to discover RUGGEDCOM ROS-based devices over a Layer 2 network.
•Link Layer Device Protocol (LLDP)
Use LLDP to broadcast the device's network capabilities and configuration to other devices on the network, as
well as receive broadcasts from other devices.
•Simple Network Management Protocol (SNMP)
Use SNMP to notify select users or groups of certain events that happen during the operation of the device, such
as changes to network topology, link state, spanning tree root, etc.
CONTENTS
•Section11.1, “Enabling/Disabling RCDP”
•Section11.2, “Managing LLDP”
•Section11.3, “Managing SNMP”
•Section11.4, “ModBus Management Support”
Section11.1
Enabling/Disabling RCDP
RUGGEDCOM ROS supports the RUGGEDCOM Discovery Protocol (RCDP). RCDP supports the deployment of
RUGGEDCOM ROS-based devices that have not been configured since leaving the factory. RUGGEDCOM ROS
devices that have not been configured all have the default IP (Layer 3) address. Connecting more than one of
them on a Layer 2 network means that one cannot use standard IP-based configuration tools to configure them.
The behavior of IP-based mechanisms such as the web interface, SSH, telnet, or SNMP will all be undefined.
Since RCDP operates at Layer 2, it can be used to reliably and unambiguously address multiple devices even
though they may share the same IP configuration.
Siemens's RUGGEDCOM EXPLORER is a lightweight, standalone Windows application that supports RCDP. It is
capable of discovering, identifying and performing basic configuration of RUGGEDCOM ROS-based devices via
RCDP. The features supported by RCDP include:
• Discovery of RUGGEDCOM ROS-based devices over a Layer 2 network.
• Retrieval of basic network configuration, RUGGEDCOM ROS version, order code, and serial number.
• Control of device LEDs for easy physical identification.
• Configuration of basic identification, networking, and authentication parameters.
Chapter 11
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198 Enabling/Disabling RCDP
For security reasons, RUGGEDCOM EXPLORER will attempt to disable RCDP or set all devices to Get Only mode
when EXPLORER is shut down.
Additionally, RUGGEDCOM EXPLORER will set all devices to Get Only mode in the following conditions:
• 60 minutes after the last RCDP frame has been received.
• The IP address, subnet, gateway or any passwords are changed for the device via SSH, RSH, Telnet, serial
console or SNMP.
IMPORTANT!
For increased security, Siemens recommends disabling RCDP if it is not intended for use.
NOTE
RCDP is not compatible with VLAN-based network configurations. For correct operation of RUGGEDCOM
EXPLORER, no VLANs (tagged or untagged) must be configured. All VLAN configuration items must be
at their default settings.
NOTE
RUGGEDCOM ROS responds to RCDP requests only. It does not under any circumstances initiate any
RCDP-based communication.
To enable or disable RCDP, do the following:
1. Navigate to Network Discovery» RuggedCom Discovery Protocol» Configure RCDP Parameters. The
RCDP Parameters form appears.
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Figure144:RCDP Parameters Form
1.RCDP Discovery List 2.Apply Button 3.Reload Button
2. Under RCDP Discovery, select one of the following options:
IMPORTANT!
The Enabled option is only available for devices loaded with factory default settings. This option
will not be selectable once a device has been configured.
•Disabled – Disables read and write access
•Get Only – Enables only read access
•Enabled – Enables read and write access
3. Click Apply.
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Chapter 11
Network Discovery and Management
Managing LLDP 199
Section11.2
Managing LLDP
The Link Layer Discovery Protocol (LLDP) defined by IEEE 802.11AB allows a networked device to advertise its own
basic networking capabilities and configuration.
LLDP allows a networked device to discover its neighbors across connected network links using a standard
mechanism. Devices that support LLDP are able to advertise information about themselves, including their
capabilities, configuration, interconnections, and identifying information.
LLDP agent operation is typically implemented as two modules: the LLDP transmit module and LLDP receive
module. The LLDP transmit module, when enabled, sends the local device’s information at regular intervals, in
IEEE 802.1AB standard format. Whenever the transmit module is disabled, it transmits an LLDPDU (LLDP data unit)
with a time-to-live (TTL) type-length-value (TLV) containing 0 in the information field. This enables remote devices
to remove the information associated with the local device in their databases. The LLDP receive module, when
enabled, receives remote devices’ information and updates its LLDP database of remote systems. When new or
updated information is received, the receive module initiates a timer for the valid duration indicated by the TTL
TLV in the received LLDPDU. A remote system’s information is removed from the database when an LLDPDU is
received from it with TTL TLV containing 0 in its information field.
NOTE
LLDP is implemented to keep a record of only one device per Ethernet port. Therefore, if there are
multiple devices sending LLDP information to a switch port on which LLDP is enabled, information
about the neighbor on that port will change constantly.
CONTENTS
•Section11.2.1, “Configuring LLDP Globally”
•Section11.2.2, “Configuring LLDP for an Ethernet Port”
•Section11.2.3, “Viewing Global Statistics and Advertised System Information”
•Section11.2.4, “Viewing Statistics for LLDP Neighbors”
•Section11.2.5, “Viewing Statistics for LLDP Ports”
Section11.2.1
Configuring LLDP Globally
To configure the global settings for LLDP, do the following:
1. Navigate to Network Discovery» Link Layer Discovery Protocol» Configure Global LLDP Parameters. The
Global LLDP Parameters form appears.
Chapter 11
Network Discovery and Management
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200 Configuring LLDP Globally
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Figure145:Global LLDP Parameters Form
1.State Options 2.Tx Interval Box 3.Tx Hold Box 4.Reinit Delay Box 5.Tx Delay Box 6.Apply Button 7.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
State Synopsis: { Disabled, Enabled }
Default: Enabled
Enables LLDP protocol. Note that LLDP is enabled on a port when LLDP is enabled globally
and along with enabling per port setting in Port LLDP Parameters menu.
Tx Interval Synopsis: 5 to 32768 s
Default: 30 s
The interval at which LLDP frames are transmitted on behalf of this LLDP agent.
Tx Hold Synopsis: 2 to 10
Default: 4
The multiplier of the Tx Interval parameter that determines the actual time-to-live (TTL)
value used in a LLDPDU. The actual TTL value can be expressed by the following formula:
TTL = MIN(65535, (Tx Interval * Tx Hold))
Reinit Delay Synopsis: 1 to 10 s
Default: 2 s
The delay in seconds from when the value of Admin Status parameter of a particular port
becomes 'Disbled' until re-initialization will be lattempted.
Tx Delay Synopsis: 1 to 8192 s
Default: 2 s
The delay in seconds between successive LLDP frame transmissions initiated by value or
status changed. The recommended value is set by the following formula:
1 <= txDelay <= (0.25 * Tx Interval)
3. Click Apply.
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Section11.2.2
Configuring LLDP for an Ethernet Port
To configure LLDP for a specific Ethernet Port, do the following:
1. Navigate to Network Discovery» Link Layer Discovery Protocol» Configure Port LLDP Parameters. The
Port LLDP Parameters table appears.
Figure146:Port LLDP Parameters Table
2. Select a port. The Port LLDP Parameters form appears.
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Figure147:Port LLDP Parameters Form
1.Port Box 2.Admin Status List 3.Notifications Options 4.Apply Button 5.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Port Synopsis: 1 to maximum port number
Default: 1
The port number as seen on the front plate silkscreen of the switch.
Admin Status Synopsis: { rxTx, txOnly, rxOnly, Disabled }
Default: rxTx
rxTx: the local LLDP agent can both transmit and receive LLDP frames through the port.
txOnly: the local LLDP agent can only transmit LLDP frames.
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Viewing Global Statistics and Advertised System
Information
Parameter Description
rxOnly: the local LLDP agent can only receive LLDP frames.
disabled: the local LLDP agent can neither transmit or receive LLDP frames.
Notifications Synopsis: { Disabled, Enabled }
Default: Disabled
Disabling notifications will prevent sending notifications and generating alarms for
particular port from the LLDP agent.
4. Click Apply.
Section11.2.3
Viewing Global Statistics and Advertised System Information
To view global statistics for LLDP and the system information that is advertised to neighbors, navigate to Network
Discovery» Link Layer Discovery Protocol» View LLDP Global Remote Statistics. The LLDP Global Remote
Statistics form appears.
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Figure148:LLDP Global Remote Statistics Form
1.Inserts Box 2.Deletes Box 3.Drops Box 4.Ageouts Box 5.Reload Button
This form displays the following information:
Parameter Description
Inserts Synopsis: 0 to 4294967295
A number of times the entry in LLDP Neighbor Information Table was inserted.
Deletes Synopsis: 0 to 4294967295
A number of times the entry in LLDP Neighbor Information Table was deleted.
Drops Synopsis: 0 to 4294967295
A number of times an entry was deleted from LLDP Neighbor Information Table because the
information timeliness interval has expired.
Ageouts Synopsis: 0 to 4294967295
A counter of all TLVs discarded.
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Section11.2.4
Viewing Statistics for LLDP Neighbors
To view statistics for LLDP neighbors, navigate to Network Discovery» Link Layer Discovery Protocol» View
LLDP Neighbor Information. The LLDP Neighbor Information table appears.
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Figure149:LLDP Neighbor Information Table
1.Port Box 2.ChassisId Box 3.PortId Box 4.SysName Box 5.SysDesc Box 6.Reload Button
This form displays the following information:
Parameter Description
Port Synopsis: 1 to maximum port number
The local port associated with this entry.
ChassisId Synopsis: Any 45 characters
Chassis Id information received from remote LLDP agent.
PortId Synopsis: Any 45 characters
Port Id information received from remote LLDP agent.
SysName Synopsis: Any 45 characters
System Name information received from remote LLDP agent.
SysDesc Synopsis: Any 45 characters
System Descriptor information received from remote LLDP agent.
Section11.2.5
Viewing Statistics for LLDP Ports
To view statistics for LLDP ports, navigate to Network Discovery» Link Layer Discovery Protocol» View LLDP
Statistics. The LLDP Statistics table appears.
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Figure150:LLDP Statistics Table
This table displays the following information:
Parameter Description
Port Synopsis: 1 to maximum port number
The port number as seen on the front plate silkscreen of the switch.
FrmDrop Synopsis: 0 to 4294967295
A counter of all LLDP frames discarded.
ErrFrm Synopsis: 0 to 4294967295
A counter of all LLDPDUs received with detectable errors.
FrmIn Synopsis: 0 to 4294967295
A counter of all LLDPDUs received.
FrmOut Synopsis: 0 to 4294967295
A counter of all LLDPDUs transmitted.
Ageouts Synopsis: 0 to 4294967295
A counter of the times that a neighbor's information has been deleted from the LLDP remote
system MIB because the txinfoTTL timer has expired.
TLVsDrop Synopsis: 0 to 4294967295
A counter of all TLVs discarded.
TLVsUnknown Synopsis: 0 to 4294967295
A counter of all TLVs received on the port that are not recognized by the LLDP local agent.
Section11.3
Managing SNMP
RUGGEDCOM ROS supports versions 1, 2 and 3 of the Simple Network Management Protocol (SNMP), otherwise
referred to as SNMPv1, SNMPv2c and SNMPv3 respectively. SNMPv3 provides secure access to the devices through
a combination of authentication and packet encryption over the network. Security features for this protocol
include:
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Feature Description
Message Integrity Makes sure that a packet has not been tampered with in-transit.
Authentication Determines if the message is from a valid source.
Encryption Encrypts the contents of a packet to prevent it from being seen by an unauthorized source.
SNMPv3 provides security models and security levels. A security model is an authentication strategy setup for
a user and the group in which the user resides. A security level is a permitted level of security within a security
model. A combination of a security model and level will determine which security mechanism is employed when
handling an SNMP packet.
Before configuring SNMPv3, note the following:
• Each user belongs to a group
• A group defines the access policy for a set of users
• An access policy defines what SNMP objects can be accessed for (i.e. reading, writing and creating notifications)
• A group determines the list of notifications its users can receive
• A group also defines the security model and security level for its users
For SNMPv1 and SNMPv2c, a community string can be configured. The string is mapped to the group and access
level with a security name, which is configured as User Name.
CONTENTS
•Section11.3.1, “SNMP Management Interface Base (MIB) Support”
•Section11.3.2, “SNMP Traps”
•Section11.3.3, “Managing SNMP Users”
•Section11.3.4, “Managing Security-to-Group Mapping”
•Section11.3.5, “Managing SNMP Groups”
Section11.3.1
SNMP Management Interface Base (MIB) Support
RUGGEDCOM ROS supports a variety of standard MIBs, proprietary RUGGEDCOM MIBs and Agent Capabilities MIBs,
all for SNMP (Simple Network Management Protocol).
CONTENTS
•Section11.3.1.1, “Supported Standard MIBs”
•Section11.3.1.2, “Supported Proprietary RUGGEDCOM MIBs”
•Section11.3.1.3, “Supported Agent Capabilities”
Section11.3.1.1
Supported Standard MIBs
RUGGEDCOM ROS supports the following standard MIBs:
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Standard MIB Name Title
RFC 2578 SNMPv2-SMI Structure of Management Information Version 2
RFC 2579 SNMPv2-TC Textual conventions for SMIv2
SNMPv2-CONF Conformance statements for SMIv2RFC 2580
IANAifType Enumerated values of the ifType Object Defined ifTable defined in IF-
MIB
RFC 1907 SNMPv2-MIB Management Information Base for SNMPv2
RFC 2011 IP-MIB SNMPv2 Management Information Base for Internet Protocol using
SMIv2
RFC 2012 TCP-MIB SNMPv2 Management Information Base for the Transmission Control
Protocol using SMIv2
RFC 2013 UDP-MIB Management Information Base for the UDP using SMIv2
RFC 1659 RS-232-MIB Definitions of managed objects for RS-232-like hardware devices
RFC 2863 IF-MIB The Interface Group MIB
RFC 2819 RMON-MIB Remote Network Monitoring (RMON) management Information base
RFC 4188 BRIDGE-MIB Definitions of managed objects for bridges
RFC 4318 RSTP-MIB Definitions of managed objects for bridges with Rapid Spanning Tree
Protocol (RSTP)
RFC 3411 SNMP-FRAMEWORK-MIB An architecture for describing Simple Network Management Protocol
(SNMP) Management Framework
RFC 3414 SNMP-USER-BASED-SM-MIB User-based Security Model (USM) for Version 3 of the Simple
Network Management Protocol (SNMPv3)
RFC 3415 SNMP-VIEW-BASED-ACM-MIB View-based Access Control Model (VACM) for the Simple
Management Protocol (SNMP)
IEEE 802.1AB-2005 LLDP-MIB Management Information Base Module for LLDP configuration,
statistics, local system data and remote systems data components
RFC 4363 Q-BRIDGE-MIB Definitions of Managed Objects for Bridges with traffic classes,
multicast filtering, and virtual LAN extensions
Section11.3.1.2
Supported Proprietary RUGGEDCOM MIBs
RUGGEDCOM ROS supports the following proprietary RUGGEDCOM MIBs:
File Name MIB Name Description
RUGGEDCOM-MIB.mib RUGGEDCOM-MIB RUGGEDCOM enterprise SMI
RUGGEDCOM-TRAPS-MIB.mib RUGGEDCOM-TRAPS-MIB RUGGEDCOM traps definition
RUGGEDCOM-SYS-INFO-MIB.mib RUGGEDCOM-SYS-INFO-MIB General system information about
RUGGEDCOM device
RUGGEDCOM-DOT11-MIB.mib RUGGEDCOM-DOT11-MIB Managemet for wireless interface on
RUGGEDCOM device
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File Name MIB Name Description
RUGGEDCOM-POE-MIB.mib RUGGEDCOM-POE-MIB Management for PoE ports on RUGGEDCOM
device
RUGGEDCOM-SERIAL-MIB.mib RUGGEDCOM-SERIAL-MIB Managemet for seral ports on RUGGEDCOM
device
RUGGEDCOM-STP-MIB.mib RUGGEDCOM-STP-MIB Management for RSTP protocol
RUGGEDCOM-NTP-MIB.mib RUGGEDCOM-NTP-MIB RUGGEDCOM proprietary MIB to control and
monitor NTP module
Section11.3.1.3
Supported Agent Capabilities
RUGGEDCOM ROS supports the following agent capabilities for the SNMP agent:
NOTE
For information about agent capabilities for SNMPv2, refer to RFC 2580 [http://tools.ietf.org/html/
rfc2580].
File Name MIB Name Supported MIB
RC-SNMPv2-MIB-AC.mib RC-SNMPv2-MIB-AC SNMPv2-MIB
RC-UDP-MIB-AC.mib RC-UDP-MIB-AC UDP-MIB
RC-TCP-MIB-AC.mib RC-TCP-MIB-AC TCP-MIB
RC-SNMP-USER-BASED-SM-MIB-AC.mib RC-SNMP-USER-BASED-SM-MIB-AC SNMP-USER-BASED-SM-MIB-AC
RC-SNMP-VIEW-BASED-ACM-MIB-AC.mib RC-SNMP-VIEW-BASED-ACM-MIB-AC SNMP-VIEW-BASED-ACM-MIB-AC
RC-IF-MIB-AC.mib RC-IF-MIB-AC IF-MIB
RC-BRIDGE-MIB-AC.mib RC-BRIDGE-MIB-AC BRIDGE-MIB
RC-RMON-MIB-AC.mib RC-RMON-MIB-AC RMON-MIB
RC-Q-BRIDGE-MIB-AC.mib RC-Q-BRIDGE-MIB-AC Q-BRIDGE-MIB
RC-IP-MIB-AC.mib RC-IP-MIB-AC IP-MIB
RC-LLDP-MIB-AC.mib RC-LLDP-MIB-AC LLDP-MIB
RC-LAG-MIB-AC.mib RC-LAG-MIB-AC IEEE8023-LAG-MIB
RC_RSTP-MIB-AC.mib RC_RSTP-MIB-AC RSTP-MIB
RC-RUGGEDCOM-DOT11-MIB-AC.mib RC-RUGGEDCOM-DOT11-MIB-AC RUGGEDCOM-DOT11- MIB
RC-RUGGEDCOM-POE-MIB-AC.mib RC-RUGGEDCOM-POE-MIB-AC RUGGEDCOM-POE-MIB
RC-RUGGEDCOM-STP-AC-MIB.mib RC-RUGGEDCOM-STP-AC-MIB RUGGEDCOM-STP-MIB
RC-RUGGEDCOM-SYS-INFO-MIB-AC.mib RC-RUGGEDCOM-SYS-INFO-MIB-AC RUGGEDCOM-SYS-INFO-MIB
RC-RUGGEDCOM-TRAPS-MIB-AC.mib RC-RUGGEDCOM-TRAPS-MIB-AC RUGGEDCOM-TRAPS-MIB
RUGGEDCOM_RS-232-MIB-AC.mib RUGGEDCOM_RS-232-MIB-AC RS-232-MIB
RC-RUGGEDCOM-SERIAL-MIB-AC.mib RC-RUGGEDCOM-SERIAL-MIB-AC RUGGEDCOM-SERIAL-MIB
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File Name MIB Name Supported MIB
RC-NTP-MIB-AC.mib RC-NTP-MIB-AC NTP-MIB
Section11.3.2
SNMP Traps
The device generates the following traps.
Standard Traps
Trap MIB
linkDown
linkUp
IF-MIB
authenticationFailure
coldStart
SNMPv2-MIB
newRoot
topologyChage
BRIDGE-MIB
risingAlarm
fallingAlarm
RMON-MIB
lldpRemoteTablesChange LLDP-MIB
Specific Proprietary Traps
Trap MIB
genericTrap
powerSupplyTrap
swUpgradeTrap
cfgChangeTrap
weakPasswordTrap
defaultKeysTrap
privKeySnmpV3UserUnknwnTrap
serialCommBlockedTrap
unknownRouteSerialProto
incopatibleFpgaTrap
clockMngrTrap
ieee1588Trap
rcLoopedBpduRcvd
RUGGEDCOM-TRAPS-MIB
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Trap MIB
rcBpduGuardActivated
rcGMRPCannotLearMoreAddresses
rcGVRPCannotLearMoreAddresses
rcMcastCpuFiltTblFull
rcIgmpGroupMembershipTblFull
rcIgmpMcastForwardTblFull
rcMacAddressNotLearned
excessLoginFailureTrap
loginInfoTrap
loginFailureTrap
radiusServiceAvailableChange
tacacsServiceAvailableChange
rcDeviceError
rcPortSecurityViolatedTrap
rcMacAddrAuthFailedTrap
rcRstpNewTopology
Generic Proprietary Traps
Generic traps carry information about events in their severity and description objects. They are sent at the same
time an alarm is generated for the device. The following are examples of RUGGEDCOM generic traps:
NOTE
Information about generic traps can be retrieved using the CLI command alarms. For more
information about the alarms command, refer to Section2.5.1, “Available CLI Commands”.
Trap Severity
TACACS+ response invalid Warning
Unable to obtain IP address Critical
SPP is rejected on Port 1 Error
BootP client: TFTP transfer failure Error
received two consecutive confusing BPDUs on port, forcing down Error
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Section11.3.3
Managing SNMP Users
This section describes how to manage SNMP users.
CONTENTS
•Section11.3.3.1, “Viewing a List of SNMP Users”
•Section11.3.3.2, “Adding an SNMP User”
•Section11.3.3.3, “Deleting an SNMP User”
Section11.3.3.1
Viewing a List of SNMP Users
To view a list of SNMP users configured on the device, navigate to Administration» Configure SNMP»
Configure SNMP Users. The SNMP Users table appears.
Figure151:SNMP Users Table
If users have not been configured, add users as needed. For more information, refer to Section11.3.3.2, “Adding
an SNMP User”.
Section11.3.3.2
Adding an SNMP User
Multiple users (up to a maximum of 32) can be configured for the local SNMPv3 engine, as well as SNMPv1 and
SNMPv2c communities.
NOTE
When employing the SNMPv1 or SNMPv2c security level, the User Name parameter maps the
community name with the security group and access level.
To add a new SNMP user, do the following:
1. Navigate to Administration» Configure SNMP» Configure SNMP Users. The SNMP Users table appears.
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1
Figure152:SNMP Users Table
1.InsertRecord
2. Click InsertRecord. The SNMP Users form appears.
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Figure153:SNMP Users Form
1.Name Box 2.IP Address Box 3.v1/v2c Community Box 4.Auth Protocol Box 5.Priv Protocol Box 6.Auth Key Box
7.Confirm Auth Key Box 8.Priv Key Box 9.Confirm Priv Key Box 10.Apply Button 11.Delete Button 12.Reload Button
NOTE
RUGGEDCOM ROS requires that all user passwords meet strict guidelines to prevent the use of
weak passwords. When creating a new password, make sure it adheres to the following rules:
• Must not be less than 6 characters in length.
• Must not include the username or any 4 continuous alphanumeric characters found in
the username. For example, if the username is Subnet25, the password may not be
subnet25admin or subnetadmin. However, net25admin or Sub25admin is permitted.
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• Must have at least one alphabetic character and one number. Special characters are permitted.
• Must not have more than 3 continuously incrementing or decrementing numbers. For example,
Sub123 and Sub19826 are permitted, but Sub12345 is not.
An alarm will generate if a weak password is configured. The weak password alarm can be
disabled by the user. For more information about disabling alarms, refer to Section5.4, “Managing
Alarms”.
3. Configure the following parameter(s) as required:
Parameter Description
Name Synopsis: Any 32 characters
Default: initial
The name of the user. This user name also represents the security name that maps this
user to the security group.
IP Address Synopsis: ###.###.###.### where ### ranges from 0 to 255
The IP address of the user's SNMP management station. If IP address is configured, SNMP
requests from that user will be verified by IP address as well. SNMP Authentication trap
will be generated to trap receivers if request was received from this user, but from any
other IP address.If IP address is empty, traps can not be generated to this user, but SNMP
requests will be served for this user from any IP address.
v1/v2c Community Synopsis: Any 32 characters
The community string which is mapped by this user/security name to the security group
if security model is SNMPv1 or SNMPv2c. If this string is left empty, it will be assumed to
be equal to the same as user name.
Auth Protocol Synopsis: { noAuth, HMACMD5, HMACSHA }
Default: noAuth
An indication of whether messages sent on behalf of this user to/from SNMP engine, can
be authenticated, and if so, the type of authentication protocol which is used.
Priv Protocol Synopsis: { noPriv, CBC-DES }
Default: noPriv
An Indication of whether messages sent on behalf of this user to/from SNMP engine can
be protected from disclosure, and if so, the type of privacy protocol which is used.
Auth Key Synopsis: 31 character ASCII string
The secret authentication key (password) that must be shared with SNMP client. If the
key is not an emtpy string, it must be at least 6 characters long.
Confirm Auth Key Synopsis: 31 character ASCII string
The secret authentication key (password) that must be shared with SNMP client. If the
key is not an emtpy string, it must be at least 6 characters long.
Priv Key Synopsis: 31 character ASCII string
The secret encription key (password) that must be shared with SNMP client. If the key is
not an emtpy string, it must be at least 6 characters long.
Confirm Priv Key Synopsis: 31 character ASCII string
The secret encription key (password) that must be shared with SNMP client. If the key is
not an emtpy string, it must be at least 6 characters long.
4. Click Apply.
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Section11.3.3.3
Deleting an SNMP User
To delete an SNMP user, do the following:
1. Navigate to Administration» Configure SNMP» Configure SNMP Users. The SNMP Users table appears.
Figure154:SNMP Users Table
2. Select the user from the table. The SNMP Users form appears.
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Figure155:SNMP Users Form
1.Name Box 2.IP Address Box 3.v1/v2c Community Box 4.Auth Protocol Box 5.Priv Protocol Box 6.Auth Key Box
7.Confirm Auth Key Box 8.Priv Key Box 9.Confirm Priv Key Box 10.Apply Button 11.Delete Button 12.Reload Button
3. Click Delete.
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Section11.3.4
Managing Security-to-Group Mapping
This section describes how to configure and manage security-to-group maps.
CONTENTS
•Section11.3.4.1, “Viewing a List of Security-to-Group Maps”
•Section11.3.4.2, “Adding a Security-to-Group Map”
•Section11.3.4.3, “Deleting a Security-to-Group Map”
Section11.3.4.1
Viewing a List of Security-to-Group Maps
To view a list of security-to-group maps configured on the device, navigate to Administration» Configure
SNMP» Configure SNMP Security to Group Maps. The SNMP Security to Group Maps table appears.
Figure156:SNMP Security to Group Maps Table
If security-to-group maps have not been configured, add maps as needed. For more information, refer to
Section11.3.4.2, “Adding a Security-to-Group Map”.
Section11.3.4.2
Adding a Security-to-Group Map
Multiple combinations of security models and groups can be mapped (up to a maximum of 32) for SNMP.
To add a security-to-group map, do the following:
1. Navigate to Administration» Configure SNMP» Configure SNMP Security to Group Maps. The SNMP
Security to Group Maps table appears.
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Figure157:SNMP Security to Group Maps Table
1.InsertRecord
2. Click InsertRecord. The SNMP Security to Group Maps form appears.
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Figure158:SNMP Security to Group Maps Form
1.Security Model Box 2.Name Box 3.Group Box 4.Apply Button 5.Delete Button 6.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
SecurityModel Synopsis: { snmpV1, snmpV2c, snmpV3 }
Default: snmpV3
The Security Model that provides the name referenced in this table.
Name Synopsis: Any 32 characters
The user name which is mapped by this entry to the specified group name.
Group Synopsis: Any 32 characters
The group name to which the security model and name belong. This name is used as an
index to the SNMPv3 VACM Access Table.
4. Click Apply.
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Section11.3.4.3
Deleting a Security-to-Group Map
To delete a security-to-group map, do the following:
1. Navigate to Administration» Configure SNMP» Configure SNMP Security to Group Maps. The SNMP
Security to Group Maps table appears.
Figure159:SNMP Security to Group Maps Table
2. Select the map from the table. The SNMP Security to Group Maps form appears.
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Figure160:SNMP Security to Group Maps Form
1.Security Model Box 2.Name Box 3.Group Box 4.Apply Button 5.Delete Button 6.Reload Button
3. Click Delete.
Section11.3.5
Managing SNMP Groups
Multiple SNMP groups (up to a maximum of 32) can be configured to have access to SNMP.
CONTENTS
•Section11.3.5.1, “Viewing a List of SNMP Groups”
•Section11.3.5.2, “Adding an SNMP Group”
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•Section11.3.5.3, “Deleting an SNMP Group”
Section11.3.5.1
Viewing a List of SNMP Groups
To view a list of SNMP groups configured on the device, navigate to Administration» Configure SNMP»
Configure SNMP Access. The SNMP Access table appears.
Figure161:SNMP Access Table
If SNMP groups have not been configured, add groups as needed. For more information, refer to Section11.3.5.2,
“Adding an SNMP Group”.
Section11.3.5.2
Adding an SNMP Group
To add an SNMP group, do the following:
1. Navigate to Administration» Configure SNMP» Configure SNMP Access. The SNMP Access table appears.
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Figure162:SNMP Access Table
1.InsertRecord
2. Click InsertRecord. The SNMP Access form appears.
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Figure163:SNMP Access Form
1.Group Box 2.Security Model Box 3.Security Level Box 4.ReadViewName Box 5.WriteViewName Box 6.NotifyViewName
Box 7.Apply Button 8.Delete Button 9.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Group Synopsis: Any 32 characters
The group name to which the security model and name belong. This name is used as an
index to the SNMPv3 VACM Access Table.
SecurityModel Synopsis: { snmpV1, snmpV2c, snmpV3 }
Default: snmpV3
In order to gain the access rights allowed by this entry, configured security model must
be in use.
SecurityLevel Synopsis: { noAuthNoPriv, authNoPriv, authPriv }
Default: noAuthNoPriv
The minimum level of security reqwuired in order to gain the access rights allowed by
this entry. A security level of noAuthNoPriv is less than authNoPriv, which is less than
authPriv.
ReadViewName Synopsis: { noView, V1Mib, allOfMib }
Default: noView
This parameter identifies the MIB tree(s) to which this entry authorizes read access. If the
value is noView, then no read access is granted.
WriteViewName Synopsis: { noView, V1Mib, allOfMib }
Default: noView
This parameter identifies the MIB tree(s) to which this entry authorizes write access. If
the value is noView, then no write access is granted.
NotifyViewName Synopsis: { noView, V1Mib, allOfMib }
Default: noView
This parameter identifies the MIB tree(s) to which this entry authorizes access for
notifications. If the value is noView, then no access for notifications is granted.
4. Click Apply.
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Section11.3.5.3
Deleting an SNMP Group
To delete an SNMP group, do the following:
1. Navigate to Administration» Configure SNMP» Configure SNMP Access. The SNMP Access table appears.
Figure164:SNMP Access Table
2. Select the group from the table. The SNMP Access form appears.
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1
Figure165:SNMP Access Form
1.Group Box 2.Security Model Box 3.Security Level Box 4.ReadViewName Box 5.WriteViewName Box 6.NotifyViewName
Box 7.Apply Button 8.Delete Button 9.Reload Button
3. Click Delete.
Section11.4
ModBus Management Support
Modbus management support in RUGGEDCOM devices provides a simple interface for retrieving basic status
information. ModBus support simplifies the job of SCADA (Supervisory Control and Data Acquisition) system
integrators by providing familiar protocols for retrieving RUGGEDCOM device information. ModBus provides
mostly read-only status information, but there are some writeable registers for operator commands.
The ModBus protocol PDU (Protocol Data Unit) format is as follows:
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Function Code Data
CONTENTS
•Section11.4.1, “ModBus Function Codes”
•Section11.4.2, “ModBus Memory Map”
•Section11.4.3, “Modbus Memory Formats”
Section11.4.1
ModBus Function Codes
RUGGEDCOM devices support the following ModBus function codes for device management through ModBus:
NOTE
While RUGGEDCOM devices have a variable number of ports, not all registers and bits apply to all
products.
Registers that are not applicable to a particular device return a zero (0) value. For example, registers
referring to serial ports are not applicable to RUGGEDCOM switch devices.
Read Input Registers or Read Holding Registers — 0x04 or 0x03
Example PDU Request
Function Code 1 Byte 0x04(0x03)
Starting Address 2 Bytes 0x0000 to 0xFFFF (Hexadecimal)
128 to 65535 (Decimal)
Number of Input Registers 2 Bytes Bytes 0x0001 to 0x007D
Example PDU Response
Function Code 1 Byte 0x04(0x03)
Byte Count 1 Byte 2 x Na
Number of Input Registers Na x 2 Bytes
aThe number of input registers
Write Multiple Registers — 0x10
Example PDU Request
Function Code 1 Byte 0x10
Starting Address 2 Bytes 0x0000 to 0xFFFF
Number of Input Registers 2 Bytes Bytes 0x0001 to 0x0079
Byte Count 1 Byte 2 x Nb
Registers Value Nb x 2 Bytes Value of the register
bThe number of input registers
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ModBus Memory Map 221
Example PDU Response
Function Code 1 Byte 0x10
Starting Address 2 Bytes 0x0000 to 0xFFFF
Number of Registers 2 Bytes 1 to 121 (0x79)
Section11.4.2
ModBus Memory Map
The following details how ModBus process variable data is mapped.
Product Info
The following data is mapped to the Productinfo table:
Address #Registers Description (Reference Table in UI) R/W Format
0000 16 Product Identification R Text
0010 32 Firmware Identification R Text
0040 1 Number of Ethernet Ports R Uint16
0041 1 Number of Serial Ports R Uint16
0042 1 Number of Alarms R Uint16
0043 1 Power Supply Status R PSStatusCmd
0044 1 FailSafe Relay Status R TruthValue
0045 1 ErrorAlarm Status R TruthValue
Product Write Register
The following data is mapped to various tables:
Address #Registers Description (Reference Table in UI) R/W Format
0080 1 Clear Alarms W Cmd
0081 2 Reset Ethernet Ports W PortCmd
0083 2 Clear Ethernet Statistics W PortCmd
0085 2 Reset Serial Ports W PortCmd
0087 2 Clear Serial Port Statistics W PortCmd
Alarms
The following data is mapped to the alarms table:
Address #Registers Description (Reference Table in UI) R/W Format
0100 64 Alarm 1 R Alarm
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Address #Registers Description (Reference Table in UI) R/W Format
0140 64 Alarm 2 R Alarm
0180 64 Alarm 3 R Alarm
01C0 64 Alarm 4 R Alarm
0200 64 Alarm 5 R Alarm
0240 64 Alarm 6 R Alarm
0280 64 Alarm 7 R Alarm
02C0 64 Alarm 8 R Alarm
Ethernet Port Status
The following data is mapped to the ethPortStats table:
Address #Registers Description (Reference Table in UI) R/W Format
03FE 2 Port Link Status R PortCmd
Ethernet Statistics
The following data is mapped to the rmonStats table:
Address #Registers Description (Reference Table in UI) R/W Format
0400 2 Port 1 Statistics - Ethernet In Packets R Uint32
0402 2 Port 2 Statistics - Ethernet In Packets R Uint32
0404 2 Port 3 Statistics - Ethernet In Packets R Uint32
0406 2 Port 4 Statistics - Ethernet In Packets R Uint32
0408 2 Port 5 Statistics - Ethernet In Packets R Uint32
040A 2 Port 6 Statistics - Ethernet In Packets R Uint32
040C 2 Port 7 Statistics - Ethernet In Packets R Uint32
040E 2 Port 8 Statistics - Ethernet In Packets R Uint32
0410 2 Port 9 Statistics - Ethernet In Packets R Uint32
0412 2 Port 10 Statistics - Ethernet In Packets R Uint32
0414 2 Port 11 Statistics - Ethernet In Packets R Uint32
0416 2 Port 12 Statistics - Ethernet In Packets R Uint32
0418 2 Port 13 Statistics - Ethernet In Packets R Uint32
041A 2 Port 14 Statistics - Ethernet In Packets R Uint32
041C 2 Port 15 Statistics - Ethernet In Packets R Uint32
041E 2 Port 16 Statistics - Ethernet In Packets R Uint32
0420 2 Port 17 Statistics - Ethernet In Packets R Uint32
0422 2 Port 18 Statistics - Ethernet In Packets R Uint32
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ModBus Memory Map 223
Address #Registers Description (Reference Table in UI) R/W Format
0424 2 Port 19 Statistics - Ethernet In Packets R Uint32
0426 2 Port 20 Statistics - Ethernet In Packets R Uint32
0440 2 Port 1 Statistics - Ethernet Out Packets R Uint32
0442 2 Port 2 Statistics - Ethernet Out Packets R Uint32
0444 2 Port 3 Statistics - Ethernet Out Packets R Uint32
0446 2 Port 4 Statistics - Ethernet Out Packets R Uint32
0448 2 Port 5 Statistics - Ethernet Out Packets R Uint32
044A 2 Port 6 Statistics - Ethernet Out Packets R Uint32
044C 2 Port 7 Statistics - Ethernet Out Packets R Uint32
044E 2 Port 8 Statistics - Ethernet Out Packets R Uint32
0450 2 Port 9 Statistics - Ethernet Out Packets R Uint32
0452 2 Port 10 Statistics - Ethernet Out Packets R Uint32
0454 2 Port 11 Statistics - Ethernet Out Packets R Uint32
0456 2 Port 12 Statistics - Ethernet Out Packets R Uint32
0458 2 Port 13 Statistics - Ethernet Out Packets R Uint32
045A 2 Port 14 Statistics - Ethernet Out Packets R Uint32
045C 2 Port 15 Statistics - Ethernet Out Packets R Uint32
045E 2 Port 16 Statistics - Ethernet Out Packets R Uint32
0460 2 Port 17 Statistics - Ethernet Out Packets R Uint32
0462 2 Port 18 Statistics - Ethernet Out Packets R Uint32
0464 2 Port 19 Statistics - Ethernet Out Packets R Uint32
0466 2 Port 20 Statistics - Ethernet Out Packets R Uint32
0480 2 Port 1 Statistics - Ethernet In Octets R Uint32
0482 2 Port 2 Statistics - Ethernet In Octets R Uint32
0484 2 Port 3 Statistics - Ethernet In Octets R Uint32
0486 2 Port 4 Statistics - Ethernet In Octets R Uint32
0488 2 Port 5 Statistics - Ethernet In Octets R Uint32
048A 2 Port 6 Statistics - Ethernet In Octets R Uint32
048C 2 Port 7 Statistics - Ethernet In Octets R Uint32
048E 2 Port 8 Statistics - Ethernet In Octets R Uint32
0490 2 Port 9 Statistics - Ethernet In Octets R Uint32
0492 2 Port 10 Statistics - Ethernet In Octets R Uint32
0494 2 Port 11 Statistics - Ethernet In Octets R Uint32
0496 2 Port 12 Statistics - Ethernet In Octets R Uint32
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Address #Registers Description (Reference Table in UI) R/W Format
0498 2 Port 13 Statistics - Ethernet In Octets R Uint32
049A 2 Port 14 Statistics - Ethernet In Octets R Uint32
049C 2 Port 15 Statistics - Ethernet In Octets R Uint32
049E 2 Port 16 Statistics - Ethernet In Octets R Uint32
04A0 2 Port 17 Statistics - Ethernet In Octets R Uint32
04A2 2 Port 18 Statistics - Ethernet In Octets R Uint32
04A4 2 Port 19 Statistics - Ethernet In Octets R Uint32
04A6 2 Port 20 Statistics - Ethernet In Octets R Uint32
04C0 2 Port 1 Statistics - Ethernet Out Octets R Uint32
04C2 2 Port 2 Statistics - Ethernet Out Octets R Uint32
04C4 2 Port 3 Statistics - Ethernet Out Octets R Uint32
04C6 2 Port 4 Statistics - Ethernet Out Octets R Uint32
04C8 2 Port 5 Statistics - Ethernet Out Octets R Uint32
04CA 2 Port 6 Statistics - Ethernet Out Octets R Uint32
04CC 2 Port 7 Statistics - Ethernet Out Octets R Uint32
04CE 2 Port 8 Statistics - Ethernet Out Octets R Uint32
04D0 2 Port 9 Statistics - Ethernet Out Octets R Uint32
04D2 2 Port 10 Statistics - Ethernet Out Octets R Uint32
04D4 2 Port 11 Statistics - Ethernet Out Octets R Uint32
04D6 2 Port 12 Statistics - Ethernet Out Octets R Uint32
04D8 2 Port 13 Statistics - Ethernet Out Octets R Uint32
04DA 2 Port 14 Statistics - Ethernet Out Octets R Uint32
04DC 2 Port 15 Statistics - Ethernet Out Octets R Uint32
04DE 2 Port 16 Statistics - Ethernet Out Octets R Uint32
04E0 2 Port 17 Statistics - Ethernet Out Octets R Uint32
04E2 2 Port 18 Statistics - Ethernet Out Octets R Uint32
04E4 2 Port 19 Statistics - Ethernet Out Octets R Uint32
04E6 2 Port 20 Statistics - Ethernet Out Octets R Uint32
Serial Statistics
The following data is mapped to the uartPortStatus table:
Address #Registers Description (Reference Table in UI) R/W Format
0600 2 Port 1 Statistics – Serial In characters R Uint32
0602 2 Port 2 Statistics – Serial In characters R Uint32
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Address #Registers Description (Reference Table in UI) R/W Format
0604 2 Port 3 Statistics – Serial In characters R Uint32
0606 2 Port 4 Statistics – Serial In characters R Uint32
0640 2 Port 1 Statistics – Serial Out characters R Uint32
0642 2 Port 2 Statistics – Serial Out characters R Uint32
0644 2 Port 3 Statistics – Serial Out characters R Uint32
0646 2 Port 4 Statistics – Serial Out characters R Uint32
0680 2 Port 1 Statistics – Serial In Packets R Uint32
0682 2 Port 2 Statistics – Serial In Packets R Uint32
0684 2 Port 3 Statistics – Serial In Packets R Uint32
0686 2 Port 4 Statistics – Serial In Packets R Uint32
06C0 2 Port 1 Statistics – Serial Out Packets R Uint32
06C2 2 Port 2 Statistics – Serial Out Packets R Uint32
06C4 2 Port 3 Statistics – Serial Out Packets R Uint32
06C6 2 Port 4 Statistics – Serial Out Packets R Uint32
Section11.4.3
Modbus Memory Formats
This section defines the Modbus memory formats supported by RUGGEDCOM ROS.
CONTENTS
•Section11.4.3.1, “Text”
•Section11.4.3.2, “Cmd”
•Section11.4.3.3, “Uint16”
•Section11.4.3.4, “Uint32”
•Section11.4.3.5, “PortCmd”
•Section11.4.3.6, “Alarm”
•Section11.4.3.7, “PSStatusCmd”
•Section11.4.3.8, “TruthValues”
Section11.4.3.1
Text
The Text format provides a simple ASCII representation of the information related to the product. The most
significant register byte of an ASCII characters comes first.
For example, consider a Read Multiple Registers request to read Product Identification from location 0x0000.
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0x04 0x00 0x00 0x00 0x08
The response may look like:
0x04 0x10 0x53 0x59 0x53 0x54 0x45 0x4D 0x20 0x4E 0x41 0x4D 0x45
0x00 0x00 0x00 0x00 0x00
In this example, starting from byte 3 until the end, the response presents an ASCII representation of the characters
for the product identification, which reads as SYSTEM NAME. Since the length of this field is smaller than eight
registers, the rest of the field is filled with zeros (0).
Section11.4.3.2
Cmd
The Cmd format instructs the device to set the output to either true or false. The most significant byte comes first.
• FF 00 hex requests output to be True
• 00 00 hex requests output to be False
• Any value other than the suggested values does not affect the requested operation
For example, consider a Write Multiple Registers request to clear alarms in the device.
0x10 0x00 0x80 0x00 0x01 2 0xFF 0x00
• FF 00 for register 00 80 clears the system alarms
• 00 00 does not clear any alarms
The response may look like:
0x10 0x00 0x80 0x00 0x01
Section11.4.3.3
Uint16
The Uint16 format describes a Standard ModBus 16 bit register.
Section11.4.3.4
Uint32
The Uint32 format describes Standard 2 ModBus 16 bit registers. The first register holds the most significant 16
bits of a 32 bit value. The second register holds the least significant 16 bits of a 32 bit value.
Section11.4.3.5
PortCmd
The PortCmd format describes a bit layout per port, where 1 indicates the requested action is true, and 0 indicates
the requested action is false.
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Alarm 227
PortCmd provides a bit layout of a maximum of 32 ports. Therefore, it uses two ModBus regsiters:
• The first ModBus register corresponds to ports 1 – 16
• The second ModBus register corresponds to ports 17 – 32 for a particular action
Bits that do not apply to a particular product are always set to zero (0).
A bit value of 1 indicates that the requested action is true. For example, the port is up.
A bit value of 0 indicates that the requested action is false. For example, the port is down.
Reading Data Using PortCmd
To understand how to read data using PortCmd, consider a ModBus Request to read multiple registers from
locatoin 0x03FE.
0x04 0x03 0xFE 0x00 0x02
The response depends on how many ports are available on the device. For example, if the maximum number of
ports on a connected RUGGEDCOM device is 20, the response would be similar to the following:
0x04 0x04 0xF2 0x76 0x00 0x05
In this example, bytes 3 and 4 refer to register 1 at location 0x03FE, and represent the status of ports 1 – 16. Bytes
5 and 6 refer to register 2 at location 0x03FF, and represent the status of ports 17 – 32. The device only has 20
ports, so byte 6 contains the status for ports 17 – 20 starting from right to left. The rest of the bites in register 2
corresponding to the non-existing ports 21 – 31 are zero (0).
Performing Write Actions Using PortCmd
To understand how data is written using PortCmd, consider a Write Multiple Register request to clear Ethernet port
statistics:
0x10 0x00 0x83 0x00 0x01 2 0x55 0x76 0x00 0x50
A bit value of 1 clears Ethernet statistics on the corresponding port. A bit value of 0 does not clear the Ethernet
statistics.
0x10 0x00 0x81 0x00 0x02
Section11.4.3.6
Alarm
The Alarm format is another form of text description. Alarm text corresponds to the alarm description from the
table holding all of the alarms. Similar to the Text format, this format returns an ASCII representation of alarms.
NOTE
Alarms are stacked in the device in the sequence of their occurence (i.e. Alarm 1, Alarm 2, Alarm 3,
etc.).
The first eight alarms from the stack can be returned, if they exist. A zero (0) value is returned if an alarm does not
exist.
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Section11.4.3.7
PSStatusCmd
The PSStatusCmd format describes a bit layout for providing the status of available power supplies. Bits 0-4 of the
lower byte of the register are used for this purpose.
• Bits 0-1: Power Supply 1 Status
• Bits 2-3: Power Supply 2 Status
Other bits in the register do not provide any system status information.
Bit Value Description
01 Power Supply not present (01 = 1)
10 Power Supply is functional (10 = 2)
11 Power Supply is not functional (11 = 3)
The values used for power supply status are derived from the RUGGEDCOM-specific SNMP MIB.
Reading the Power Supply Status from a Device Using PSStatusCmd
To understand how to read the power supply status from a device using PSStatusCmd, consider a ModBus Request
to read multiple registers from location 0x0043.
0x04 0x00 0x43 0x00 0x01
The response may look like:
0x04 0x02 0x00 0x0A
The lower byte of the register displays the power supply's status. In this example, both power supplies in the unit
are functional.
Section11.4.3.8
TruthValues
The Truthvalues format represents a true or false status in the device:
• 1 indicates the corresponding status for the device to be true
• 2 indicates the corresponding status for the device to be false
Reading the FailSafe Relay Status From a Device Using TruthValue
To understand how to use the TruthValue format to read the FailSafe Relay status from a device, consider a
ModBus request to read multiple registers from location 0x0044.
0x04 0x00 0x44 0x00 0x01
The response may look like:
0x04 0x02 0x00 0x01
The register's lower byte shows the FailSafe Relay status. In this example, the FailSafe Relay is energized.
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TruthValues 229
Reading the ErrorAlarm Status From a Device Using TruthValue
To understand how to use the TruthValue format to read the ErrorAlarm status from a device, conside a ModBus
request to read mulitple registers from location 0x0045.
0x04 0x00 0x45 0x00 0x01
The response may look like:
0x04 0x02 0x00 0x01
The register's lower byte shows the ErrorAlarm status. In this example, there is no active ERROR, ALERT or CRITICAL
alarm in the device.
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Chapter 12
IP Address Assignment
Managing DHCP Relay Agent 231
IP Address Assignment
This chapter describes features related to the assignment of IP addresses.
CONTENTS
•Section12.1, “Managing DHCP Relay Agent”
Section12.1
Managing DHCP Relay Agent
A DHCP Relay Agent is a device that forwards DHCP packets between clients and servers when they are not on the
same physical LAN segment or IP subnet. The feature is enabled if the DHCP server IP address and a set of ethernet
ports are configured.
DHCP Option 82 provides a mechanism for assigning an IP Address based on the location of the client device in the
network. Information about the client’s location can be sent along with the DHCP request to the server. Based on
this information, the DHCP server makes a decision about an IP Address to be assigned.
The DHCP Relay Agent takes the broadcast DHCP requests from clients received on the configured port and inserts
the relay agent information option (Option 82) into the packet. Option 82 contains the VLAN ID (2 bytes) and the
port number of the client port (2 bytes: the circuit ID sub-option) and the relay agent’s MAC address (the remote
ID sub-option). This information uniquely defines the client’s position in the network.
The DHCP Server supporting DHCP Option 82 sends a unicast reply and echoes Option 82. The DHCP Relay Agent
removes the Option 82 field and forwards the packet to the port from which the original request was received.
These parameters provide the ability to configure the information based DHCP relay agent (Option 82).
CONTENTS
•Section12.1.1, “Configuring the DHCP Relay Agent”
•Section12.1.2, “Enabling DHCP Relay Agent Information (Option 82) for Specific Ports”
Section12.1.1
Configuring the DHCP Relay Agent
To configure the device as a DHCP Relay Agent (Option 82), do the following:
1. Navigate to Network Access Control» DHCP Snooping» Configure DHCP Parameters. The DHCP
Parameters form appears.
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Enabling DHCP Relay Agent Information (Option 82) for
Specific Ports
2 3
1
Figure166:DHCP Parameters Form
1.DHCP Server Address Box 2.Apply Button 3.Reload Button
2. Configure the following parameter(s) as required:
Parameter Description
DHCP Server Address Synopsis: ###.###.###.### where ### ranges from 0 to 255
IP address of the DHCP server to which DHCP requests will be forwarded. DHCP server IP
must be configured for Relay Agent to work.
3. Click Apply.
4. Enable DHCP Relay Agent (Option 82) on ports connected to a DHCP client. For more information, refer to
Section12.1.2, “Enabling DHCP Relay Agent Information (Option 82) for Specific Ports”.
Section12.1.2
Enabling DHCP Relay Agent Information (Option 82) for
Specific Ports
DHCP Relay Agent (Option 82) can be enabled for any Ethernet port connected to a DHCP client.
To enable DHCP Relay Agent (Option 82) for a specific port, do the following:
1. Navigate to Network Access Control» DHCP Snooping» Configure DHCP Port Parameters. The DHCP Port
Parameters table appears.
Figure167:DHCP Port Parameters Table
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Specific Ports 233
2. Select a port. The DHCP Port Parameters form appears.
4
3
2
1
Figure168:Port DCHP Parameters Form
1.Port Box 2.Option-82 Options 3.Apply Button 4.Reload Button
3. Configure the following parameter(s) as required:
Parameter Description
Port Synopsis: 1 to maximum port number
The port number as seen on the front plate silkscreen of the switch.
Option-82 Synopsis: { Disabled, Enabled }
Default: Disabled
Insert DHCP Option 82.
4. Click Apply.
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Enabling DHCP Relay Agent Information (Option 82) for
Specific Ports
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Chapter 13
Troubleshooting
General 235
Troubleshooting
This chapter describes troubleshooting steps for common issues that may be encountered when using
RUGGEDCOM ROS or designing a network.
IMPORTANT!
For further assistance, contact a Customer Service representative.
CONTENTS
•Section13.1, “General”
•Section13.2, “Ethernet Ports”
•Section13.3, “Spanning Tree”
•Section13.4, “VLANs”
Section13.1
General
The following describes common problems.
Problem Solution
The switch is not responding to ping
attempts, even though the IP address and
gateway have been configured. The switch
is receiving the ping because the LEDs are
flashing and the device statistics are logging
the pings. What is going on?
Is the switch being pinged through a router? If so, the switch gateway address must be
configured as well. The following figure illustrates the problem.
192.168.0.2
192.168.0.1
10.10.0.1
10.10.0.2
1
2
3
Figure169:Using a Router As a Gateway
1.Work Station 2.Router 3.Switch
The router is configured with the appropriate IP subnets and will forward the ping from the
workstation to the switch. When the switch responds, however, it will not know which of
its interfaces to use to reach the workstation and will drop the response. Programming a
gateway of 10.0.0.1 will cause the switch to forward unresolvable frames to the router.
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Problem Solution
This problem will also occur if the gateway address is not configured and the switch tries to
raise an SNMP trap to a host that is not on the local subnet.
Section13.2
Ethernet Ports
The following describes common problems related to Ethernet ports.
Problem Solution
A link seems fine when traffic levels are low,
but fails as traffic rates increase OR a link can
be pinged but has problems with FTP/SQL/
HTTP/etc.
A possible cause of intermittent operation is that of a ‘duplex mismatch’. If one end of the
link is fixed to full-duplex and the peer auto-negotiates, the auto-negotiating end falls back
to half-duplex operation.
At lower traffic volumes, the link may display few if any errors. As the traffic volume
rises, the fixed negotiation side will begin to experience dropped packets while the auto-
negotiating side will experience collisions. Ultimately, as traffic loads approach 100%, the
link will become entirely unusable.
The ping command with flood options is a useful tool for testing commissioned links. The
command ping 192.168.0.1 500 2 can be used to issue 500 pings each separated by
two milliseconds to the next switch. If the link used is of high quality, then no pings should
be lost and the average round trip time should be small.
Links are inaccessible, even when using the
Link Fault Indication (LFI) protection feature.
Make sure LFI is not enabled on the peer as well. If both sides of the link have LFI enabled,
then both sides will withhold link signal generation from each other.
Section13.3
Spanning Tree
The following describes common problems related to the Spanning Tree Protocol (STP).
Problem Solution
The network locks up when a new port is
connected and the port status LEDs are
flashing rapidly.
Occasionally, the ports seem to experience
significant flooding for a brief period of time.
A switch displays a strange behavior where
the root port hops back and forth between
two switch ports and never settles down.
Is it possible that one of the switches in the network or one of the ports on a switch in the
network has STP disabled and accidentally connects to another switch? If this has occurred,
then a traffic loop has been formed.
If the problem appears to be transient in nature, it is possible that ports that are part of the
spanning tree have been configured as edge ports. After the link layers have come up on
edge ports, STP will directly transition them (perhaps improperly) to the forwarding state.
If an RSTP configuration message is then received, the port will be returned to blocking. A
traffic loop may be formed for the length of time the port was in forwarding.
If one of the switches appears to flip the root from one port to another, the problem may be
one of traffic prioritization. For more information refer to "The network becomes unstable
when a specific application is started."
Another possible cause of intermittent operation is that of an auto-negotiation mismatch.
If one end of the link is fixed to full-duplex mode and the peer auto-negotiates, the auto-
negotiating end will fall back to half-duplex operation. At lower traffic, the volumes the
link may display few if any errors. As the traffic volume rises, the fixed negotiation side
will begin to experience dropped packets while the auto-negotiating side will experience
collisions. Ultimately, as traffic loads approach 100%, the link will become entirely unusable.
At this point, RSTP will not be able to transmit configuration messages over the link and
the spanning tree topology will break down. If an alternate trunk exists, RSTP will activate it
in the place of the congested port. Since activation of the alternate port often relieves the
congested port of its traffic, the congested port will once again become reliable. RSTP will
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Spanning Tree 237
Problem Solution
promptly enter it back into service, beginning the cycle once again. The root port will flip
back and forth between two ports on the switch.
A computer or device is connected to a
switch. After the switch is reset, it takes a
long time for it to come up.
Is it possible that the RSTP edge setting for this port is set to false? If Edge is set to false, the
bridge will make the port go through two forward delay times before the port can send or
receive frames. If Edge is set to true, the bridge will transition the port directly to forwarding
upon link up.
Another possible explanation is that some links in the network run in half-duplex mode.
RSTP uses a peer-to-peer protocol called Proposal-Agreement to ensure transitioning in the
event of a link failure. This protocol requires full-duplex operation. When RSTP detects a
non-full duplex port, it cannot rely on Proposal-Agreement protocol and must make the port
transition the slow (i.e. STP) way. If possible, configure the port for full-duplex operation.
Otherwise, configure the port’s point-to-point setting to true.
Either one will allow the Proposal-Agreement protocol to be used.
When the switch is tested by deliberately
breaking a link, it takes a long time before
devices beyond the switch can be polled.
Is it possible that some ports participating in the topology have been configured to STP mode
or that the port’s point-to-point parameter is set to false? STP and multipoint ports converge
slowly after failures occur.
Is it possible that the port has migrated to STP? If the port is connected to the LAN segment
by shared media and STP bridges are connected to that media, then convergence after link
failure will be slow.
Delays on the order of tens or hundreds of milliseconds can result in circumstances where
the link broken is the sole link to the root bridge and the secondary root bridge is poorly
chosen. The worst of all possible designs occurs when the secondary root bridge is located
at the farthest edge of the network from the root. In this case, a configuration message will
have to propagate out to the edge and then back to reestablish the topology.
The network is composed of a ring of
bridges, of which two (connected to
each other) are managed and the rest are
unmanaged. Why does the RSTP protocol
work quickly when a link is broken between
the managed bridges, but not in the
unmanaged bridge part of the ring?
A properly operating unmanaged bridge is transparent to STP configuration messages. The
managed bridges will exchange configuration messages through the unmanaged bridge
part of the ring as if it is non-existent. When a link in the unmanaged part of the ring fails
however, the managed bridges will only be able to detect the failure through timing out of
hello messages. Full connectivity will require three hello times plus two forwarding times to
be restored.
The network becomes unstable when a
specific application is started. The network
returns to normal when the application is
stopped.
RSTP sends its configuration messages using the highest possible priority level. If CoS is
configured to allow traffic flows at the highest priority level and these traffic flows burst
continuously to 100% of the line bandwidth, STP may be disrupted. It is therefore advised
not to use the highest CoS.
When a new port is brought up, the root
moves on to that port instead of the port it
should move to or stay on.
Is it possible that the port cost is incorrectly programmed or that auto-negotiation derives an
undesired value? Inspect the port and path costs with each port active as root.
An Intelligent Electronic Device (IED) or
controller does not work with the device.
Certain low CPU bandwidth controllers have been found to behave less than perfectly when
they receive unexpected traffic. Try disabling STP for the port.
If the controller fails around the time of a link outage, there is the remote possibility that
frame disordering or duplication may be the cause of the problem. Try setting the root port
of the failing controller’s bridge to STP.
Polls to other devices are occassionally lost. Review the network statistics to determine whether the root bridge is receiving Topology
Change Notifications (TCNs) around the time of observed frame loss. It may be possible there
are problems with intermittent links in the network.
The root is receiving a number of TCNs.
Where are they coming from?
Examine the RSTP port statistics to determine the port from which the TCNs are arriving.
Sign-on to the switch at the other end of the link attached to that port. Repeat this step until
the switch generating the TCNs is found (i.e. the switch that is itself not receiving a large
number of TCNs). Determine the problem at that switch.
Chapter 13
Troubleshooting
RUGGEDCOM ROS
User Guide
238 VLANs
Section13.4
VLANs
The following describes common problems related to the VLANs.
Problem Solution
VLANs are not needed on the network. Can
they be turned off?
Yes. Simply leave all ports set to type edge and leave the native VLAN set to 1. This is the
default configuration for the switch.
Two VLANs were created and a number of
ports were made members of them. Now
some of the devices in one VLAN need to
send messages to devices in the other VLAN.
If the devices need to communicate at the physical address layer, they must be members of
the same VLAN. If they can communicate in a Layer 3 fashion (i.e. using a protocol such as IP
or IPX), use a router. The router will treat each VLAN as a separate interface, which will have
its own associated IP address space.
On a network of 30 switches, management
traffic needs to be restricted to a separate
domain. What is the best method for doing
this while staying in contact with these
switches?
At the switch where the management station is located, configure a port to use the new
management VLAN as its native VLAN. Configure a host computer to act as a temporary
management station.
At each switch, configure the management VLAN to the new value. Contact with each
individual switch will be lost immediately as they are being configured, but it should be
possible re-establish communication from the temporary management station. After all
switches have been taken to the new management VLAN, configure the ports of all attached
management devices to use the new VLAN.
NOTE
Establishing a management domain is often accompanied with the
establishment of an IP subnet specifically for the managed devices.
