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Ha-VIS mCon
Ha-VIS mCon
Management Software Overview
Quality of Service (802.1p, DiffServ)
Quality of Service (QoS) is a technology for
managing network trafc in a cost effective manner
to enhance network performance and reliability of
the application. QoS allows the priorization of the
network trafc to assure quality and performance
at any time. For example, QoS technologies can
be applied to prioritize trafc for latency-sensitive
applications (such as automation protocols and
voice or video) and to control the impact of latency-
insensitive trafc. The IEEE 802.1p standard
provides up to eight trafc classes which can be
congured via the management software. The
queuing scheme and the way the trafc will be
handled inside the switch can adapted to the
requirements of the application.
High
Medium
Normal
Low
Trafc-
Priorization
Trafc priorization for time critical applications
Virtual LAN (VLAN)
As networks have grown in size and complexity, the
claim to segment these networks increased rapidly.
To avoid the rise of costs and complexity of the
devices, the segmentation and separation of different
network groups should be established by virtual local
area networks (VLANs). This functionality provides
a way of structuring and organize the network.
Basically, a VLAN is a collection of nodes that are
grouped together in a single broadcast domain that
is not based on physical location of the devices.
VLANs logically segment the shared media LAN
and forming virtual workgroups. The different VLANs
will send and receive data only to devices which are
members of this special LAN. HARTING Ha-VIS
mCon switches support up to 4094 VLAN tags and
conforms with IEEE standard 802.1Q. The use of
VLANs will have the following benets:
• Security – Separating systems that have sensitive
data from the rest of the network
• Performance/Bandbreite – Limitation and
administrativ control of the network
• Broadcasts/Trafc-ows – VLANs does not pass
broadcast trafc to nodes that are not part of the
VLAN, it automatically reduces broadcasts
VLAN 1
VLAN 2
VLAN 3
Trafc management with VLANs
