3Com 4060, 4050 User Manual

3Com® Switch 4050 and 4060 Gigabit Multilayer Switching Software Version 3.05 Release Notes

Table of Contents

Related Documentation

Please use these notes in conjunction with the following documents:

● “3Com Switch 4050 and 4060 Series Getting Started Guide”

Part number: DUA1770-9AAA03 (supplied with your SuperStack 3 Switch and in PDF format on the 3Com Web site)

● “3Com Switch 4050 and 4060 Implementation Guide”

Part number: DUA1770-9BAA03 (supplied in PDF format on the CD-ROM that accompanies your Switch and on the 3Com Web site)

● “3Com Switch 4050 and 4060 Management Quick Reference Guide”

Part number: DQA1770-9AAA03 (supplied with your SuperStack 3 Switch and in PDF format on the 3Com Web site)

● “3Com Switch 4050 and 4060 Management Interface Reference Guide”

Part number: DHA1770-9AAA03 (supplied in HTML format on the CD-ROM that accompanies your Switch and on the 3Com Web site)

You can obtain the latest technical information for your Switch, including a list of known problems and solutions, from the 3Com Knowledgebase:

http://knowledgebase.3com.com

Software License Agreement

Before you use the 3Com Switch 4050 and 4060 software, please ensure that you read the license agreement text. You can find the license.txt file on the CD-ROM that accompanies your product, or in the self-extracting exe that you have downloaded from the 3Com website.

If you intend to use a 3Com Switch 4050 and 4060 with version 3.05 software in a Distributed Fabric, ensure that all other units in the Distributed Fabric are upgraded to version 3.05 as well. 3Com cannot guarantee correct operation if different software versions are used within a Distributed Fabric. Please note that under the terms and conditions of the 3Com End User Software License Agreement, you will need to purchase a service contract for each existing 3Com Switch 4050 and 4060 before upgrading to version 3.05 software.

About This Software Version

The version 3.05 agent feature set is a compatible superset of that provided by all previous versions of this software. This software provides support for the following:

● 3Com Switch 4050 (3C17708)

● 3Com Switch 4060 (3C17709)

The 3Com Switch 4050 and 4060 Gigabit Multilayer Switching Software Version 3.05 does not operate on any other 3Com Switch.

Upgrading to Software Version 3.05

3Com strongly recommends that you upgrade all Switch 4050 and 4060 units which are running a previous version of software to version 3.05.

Fixes for Known Faults

The following known faults have been fixed in version 3.05:

● When a group of routers that exchange RIP messages use DHCP/BOOTP for the configuration of

the first IP interface and receive IP addresses within the same network, the first router to get its configuration can interfere with the other routers from getting their configuration. You should disable RIP until the DHCP/BOOTP/ process completes.

● When upgrading from any previous version of software to V3.00 the discard on Tx setting was

corrupted for link aggregations. The effect of this could possibly result in traffic being blocked due to oversubscribed 10/100M links. Upgrading to version 3.05 will correct this problem and force Discard

on transmit to 'on' for link aggregations.

● Under some circumstances with high traffic loads it was possible that on a fabric merge, one or both

of the XRN units could reset.

● Some packet duplication lasting for a few seconds was possible after an XRN fabric split.

● TCP connection setups could corrupt the memory causing the Switch to reset. This has been seen

whilst managing the unit via the Web interface, with the http traffic going via a proxy server hosted by Novell Border Manager.

● Using the Web Interface, the 1hour statistics and the 24hour statistics were the same.

● Excessive and/or inconsistant failover times on XRN Fabric split and merge were found under some

configurations and traffic scenarios.

Points to Note when using the Switch 4050 and 4060

Supported Expansion Modules

● 3C17710 – 4 port 1000BASE-SX module

● 3C17711 – 4 port 1000BASE-T module

● 3C17712 – 4 port 1000BASE-LX module

● 3C17714 – 4 port GBIC module

● 3C17716 – XRN Interconnect module

Inserting and Replacing Expansion Modules

CAUTION: The Modules are not hot-insertable or hot-swappable. You must always power down the

Switch and disconnect it from the mains before installing or removing a Module.

● When you insert a Module into the Switch, push the Module in until the Module’s back plate is in full

contact with the Switch’s chassis.

● When you have inserted the Module, secure the Module to the Switch by tightening the three

cap-tive screws fully with a screwdriver.

● If an error is indicated during the Power On Self Test, check that the module has been correctly

inserted.

● Ensure that the blanking plate and its fastenings are stored in a suitable place. If the module is

removed, the blanking plate must be replaced.

● When an expansion module is replaced by another module of a different type, the configuration will

not be completely reset to factory defaults. Specifically, the following module parameters will not be reset:

❍ Static addresses ❍ Resilient links ❍ IGMP router ports ❍ RMON alarm variables ❍ Spanning Tree port data

● It is recommended that all module configuration should be reviewed after the expansion module has

been replaced.

Auto-MDIX

Auto-MDIX is not available if auto-negotiation is disabled on a port. That port will only operate in MDIX mode.

Serial Cable

When using a serial cable you must ensure that it is wired correctly as described in Appendix B of the Getting Started Guide.

TFTP Upgrades

Note that when initiating a TFTP upgrade using the Web interface or CLI, if an incorrect TFTP server IP address or software upgrade filename is entered you will not be able to correct the IP address or filename until the TFTP upgrade operation has timed out. The default time out period is 5 minutes.

You can avoid the 5 minute time out period by aborting the upgrade, either using the Abort button in the Web interface or the Esc character in the Command Line Interface.

Configuring Link Aggregations

When creating a manual aggregation between two systems the ports in the aggregation must not be physically connected together until the aggregation has been correctly configured at both ends of the link. Failure to configure the aggregation at both ends before physically connecting the ports can result in a number of serious network issues such as lost packets and network loops.

LACP Protocol

CAUTION: The LACP protocol is disabled by default in version 3.05 software. Some legacy devices do not support LACP and 3Com strongly recommends LACP remains disabled on ports connected to these devices (in rare cases, if LACP is enabled on ports connected to these devices, it can result in incorrect network configurations).

CD-ROM

When using the setup.exe that displays the splash screen on the CD-ROM you may experience a problem if you have an early version of virus checker installed on your PC. If you experience this problem the following error is displayed when the setup.exe is activated:

Application Error

Exception EResNotFound in

Module 0DSCD.EXE at 0016:0B37

Resource TMainForm not found.

You can either:

•

Turn off your virus checking software whilst using the CD-ROM

•

Upgrade your virus checking software to the latest version.

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