HP SuperStack 3 Load Balancer Appliance Release Notes

SuperStack® 3

Server Load Balancer Server Load Balancer Plus

Release Notes

3C16120
3C16121
Software Version A3.5
Release Date June, 2001

http://www.3com.com/

Published June 2001

3Com Corporation
5400 Bayfront Plaza
Santa Clara, California
95052-8145

Copyright © 2001, 3Com Technologies. All rights reserved. No part of this documentation may be reproduced
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changes in the product(s) and/or the program(s) described in this documentation at any time.

If there is any software on removable media described in this documentation, it is furnished under a license
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If you are a United States government agency, then this documentation and the software described herein are
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Software is delivered as “Commercial Computer Software” as defined in DFARS 252.227-7014 (June 1995) or
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not be registered in other countries.

3Com, and SuperStack are registered trademarks of 3Com Corporation. The 3Com logo is a trademark of
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CONTENTS

RELEASE NOTE INFORMATION

Overview 5
Product Prerequisites 5

Web Browser Requirements 6

Solaris and Linux Operating Systems 6
Reset To Factory Defaults 6
Configuration Issues 6

Changing Password 7

Committing Configurations 7

Resetting Unit Settings 7

Clock Settings 8
Redundant Configuration Issues 8

Virtual Router Redundancy Protocol Priority Generation 8

Preventing VRID Collisions 9

Restricted Management Topology 10

Changing Redundancy Types 10
System Clock 11
Service Access Permissions 11
Balance Profile Configuration 11
Server Network Address Translation 12
Dynamic Port Range 12
Software Upgrades 12

TFTP Server Timeouts 12

Disable Attack Filters 13

Restart the Browser 13

TECHNICAL SUPPORT

Online Technical Services 1

World Wide Web Site 1
3Com Knowledgebase Web Services 1

3Com FTP Site 2
Support from Your Network Supplier 2
Support from 3Com 2
Returning Products for Repair 4

RELEASE NOTE INFORMATION

Overview These release notes cover the Server Load Balancer (3C16120) and the

Server Load Balancer Plus (3C16121).

Before using your Server Load Balancer and Server Load Balancer Plus,
please read this document in its entirety. It contains important
information about the product and the software.

3Com provides easy access to technical support information through a
variety of services. See Technical Support on page 1.

Information contained in the Technical Support section is correct at time
of publication. For the most recent information, 3Com recommends that
you access the 3Com Corporation World Wide Web site. See Online
Technical Services on page 1.

Product Prerequisites

For specific information on installing and configuring the Server Load
Balancer or the Server Load Balancer Plus, refer to the Server Load
Balancer and Server Load Balancer Plus User Guide for information.

The Server Load Balancer and Server Load Balancer Plus require the
following:

■ Any Pentium or newer processor. 3Com recommends using a Pentium

processor of 350 MHz or greater.

■ Microsoft Windows 95/98, Windows NT 4.0, or Windows 2000.

■ Web browser, such as Netscape Navigator® version 4.5 or above or

Microsoft® Internet Explorer, version 5.0 or above.

■ Java Runtime Environment Version 1.3 (for updated Web browser

plug-ins).

A version of the Java Runtime Environment (JRE) plug-in for
Windows® is provided on the Server Load Balancer and Server Load

6 RELEASE NOTE INFORMATION

Balancer Plus. If the JRE program is missing, you will be prompted to

install it. See the Server Load Balancer and Server Load Balancer Plus

User Guide for information.

For an up to date list of supported operating systems and browser

releases, refer to the 3Com Web site at http://www.3Com.com. Click

Support for Products for more information.

Web Browser

Requirements

Solaris and Linux

Operating Systems

Reset To Factory Defaults

The Web Interface requires a Web browser such as Netscape Navigator®
version 4.5 or above or Microsoft® Internet Explorer, version 5.0 or
above.

Netscape version 4.77 is not supported at this time.

If you do not have a Web browser installed, you must do so before
installing and configuring the Server Load Balancer and Server Load
Balancer Plus. For more information on Netscape or Microsoft Internet
Explorer, refer to the manufacturer's Web sites located at:
http://www.microsoft.com or http://www.netscape.com.

For information on Solaris™ and Linux™ operating systems go to the
following URL:

http://support.3com.com/infodeli/tools/switches/ss3/
family.htm

You should be careful when returning the Server Load Balancer and
Server Load Balancer Plus in a redundant configuration back to factory
defaults. In a redundant configuration, topological loops are inherent in
the deployment.

Special consideration of the attachment of servers using L2 devices to the
Server Load Balancer and Server Load Balancer Plus should be made to
remove links that create loops among the devices.

Configuration Issues

When configuring for redundant operation, avoid loops until the
configuration is complete.

The following are issues related to the configuration of the Server Load
Balancer and Server Load Balancer Plus.