DATA SHEET
SuperStack®3Server Load
Balancer Family
Key Benefits
Maximum server
performance
through efficient
load sharing
Maximum Server Responsiveness
Speeds application response by load
balancing across multiple servers; six
load balancing algorithms and wire-
speed transmission ensure optimal
performance.
Server Deployment Flexibility
Allows you to mix existing and new
servers and to incrementally add
server capacity; solution runs inde-
pendent of server operating systems
and architectures to increase server
responsiveness and to leverage your
server investments.
High Availability
Maximizes server availability through
seamless switchover between servers
and support for redundant load bal-
ancing configurations.
Extensive Scalability
Directly connect up to 12 servers, or
su pport u p to 256 servers via intermedi-
ate switches . Tak e advanta g e of u p
to 1,000 simultaneous client sessions
with the 3Com®SuperStack®3 Serv er
Load Balancer, or scale even higher—up
to 8,000 client sessions—with the
Su perStack 3 Serv er Load Balancer Plus .
Comprehensive Security
Integrated filters protect your servers
from a wide variety of Denial of
Service (DoS) attacks, providing extra
protection for these critical resources.
Radical Simplicity
Wizards, intelligent defaults, and an
efficient web-based user interface will
generally have you up and running in
less than 20 minutes. Includes 3Com
Network Supervisor support for easy
custom configuration, monitoring,
and remote management.
Limited Lifetime Warranty
Ensures peace of mind. Includes fan
and power supply.
The 3ComSuperStack3 Server Load
Balancer products distribute traffic
optimally among servers in web sites
and other server farms. These high-
performance, dedicated load-balancing
switches fulfill the important perfor-
mance-boosting mission of insuring
that server requests get delivered to
the server most capable of quickly
returning content to the user. In addi-
tion, their high-availability features
ensure that applications contin ue to
run ev en thr ough individual server
failure or maintenance downtime.
Advanced e-commerce functions are
also supported. Integrated security
features offer an added layer of server
protection from Denial of Service
(DoS) attacks.
SUPERSTACK® 3 SERVER LOAD BALANCER FAMILY
3Com Corporation, Corporate Headquarters, 5400 Bayfront Plaza, P.O. Box 58145, Santa Clara, CA 95052-8145
To learn more about 3Com solutions, visit www.3com.com. 3Com Corporation is publicly traded on Nasdaq under the
symbol COMS.
Copyright © 2002 3Com Corporation. All rights reserved. 3Com and SuperStack are registered trademarks of 3Com
Corporation. The 3Com logo is a trademark of 3Com Corporation. All other company and product names may be
trademarks of their respective companies. While every effort is made to ensure the information given is accurate,
3Com does not accept liability for any errors or mistakes which may arise. All specifications are subject to change
without notice. 400697-002a 10/02
3Com SuperStack 3 Server Load Balancer 3C16120
Supports up to 16,000 simultaneous TCP connections.
3Com SuperStack 3 Server Load Balancer Plus
Supports up to 128,000 simultaneous TCP connections.
3C16121
Optional Accessories for the Server Load Balancer
3Com SuperStack 3 Advanced Redundant Power
System chassis 3C16071B
3Com SuperStack 3 Advanced Redundant Power
System Type 3 Power Supply Module 3C16075
Ordering Information
Interfaces
Two 1000BASE-SX (SC) Gigabit Ethernet; 12 RJ-45
10/100Base-T Ethernet/Fast Ethernet with auto-
negotiated speed and duplex mode
Dimensions and Weight
Height: 65.8 mm (2.59 in or 1.5U)
Width: 440 mm (17.32 in)
Depth: 368.4 mm (14.5 in)
Weight: 9.09 kg (20 lb)
Performance
TCP/IP Sessions (SuperStack 3 Server Load
Balancer): 16,000
TCP/IP Sessions (SuperStack 3 Server Load
Balancer Plus): 128,000
Megabits/second: 2.2 Gbps
Max Number of Servers: 256
Applications Load Balanced
Web (HTTP, HTTPS), Mail (SMTP, POP3, IMAP,
MS Outlook), and File Transfer (FTP)
Server Load Balancer Policies
Round Robin, Weighted Round Robin, Least
Connections, Weighted Least Connections,
Quickest Last Response, Quickest Average
Response
Attributes
Copper/Fiber option: SX
Platform: Hardware/ASIC
Storage: Flash
Upgrades: TFTP or FTP
P ort T runking (Etherchannel): Yes
Cache redirect: Yes
Persistence Modes
Source IP: Yes
SSL Session ID: Yes
Cookie: Yes
Redundant Failover Modes
Primary/Secondary: Yes
Activ e/Active: Yes
Reliability
SuperStack 3 Server Load Balancer:
MTBF (MIL): 316,000 hours at 25° C
SuperStack 3 Server Load Balancer Plus:
MTBF (MIL): 310,000 hours at 25° C
Environmental
Operating temperature: 0° to +40° C (32°-104° F)
Storage temperature: -40° to +70° C (-40°-158° F)
Humidity: 10 to 95% (non-condensing)
Power
Input voltage: 90 - 240 VAC
Maximum input current: 3 A
Operating frequency: 50/60 Hz
Power Consumption: 75W
Standards Compliance
Safety: USA and Canada, UL1950/CSA22.2 No.
950-95, 3rd edition (Bi-National USA and Canada).
European Community & EEA, EN60950 2000: ZB
& ZC deviations; via GS Mark, CE. International,
CB Report/Certificate to IEC 60950: 1999 including
all national deviations
Emissions: USA and Canada, FCC Part 15,
Subpart B/ICES-003, Class A
European Community & EEA, EN55022: 1998,
CISPR22, CE
Australia, NZS3548
Immunity: European Community & EEA,
EN55024: 1998, CE
EN61000-3-2, -3 Power Line Harmonics, Flicker,
CE
Warranty
Limited lifetime warranty, for as long as the cus-
tomer owns the pr oduct, or five years after product
discontinuance. Includes fan and pow er supply.
Other Services
After registering the pr oduct online, other support
services such as 90-da ys telephone support and
faster har dware replacement may also be a v ailable,
depending on geogra phic availability.
Management
Embedded Web GUI management interface
3Com Network Supervisor
Specifications
