Table of Contents
Release Notes for the
Catalyst 2820 Series Standard Edition Switches, Version 8.00
Release Notes for the
Catalyst 2820 Series Standard Edition Switches, Version 8.00
May 8, 1998
Use the following publications in conjunction with this document:
- Catalyst 2820 Series Installation and Configuration Guide
- Catalyst 2820 Modules User Guide
- Catalyst 2820 ATM Modules Installation and Configuration Guide
These release notes describe the usage guidelines and limitations for the Catalyst 2820 Series Standard Edition switches (hereafter referred to as the Catalyst 2820 switches) using firmware version 8.00.
- If you attempt to upgrade module firmware from the web console and the
Module (Slot A or B) TFTP Upgrade button does not appear on the Console and Upgrade Configuration page, the module firmware is corrupted. Do not continue to upgrade the module firmware from the web. Use the menu console to upgrade the module firmware. [CSCdj92758]
- For the web console, make sure that JavaScript is enabled. From the Netscape 4.xx Preferences menu, click Advanced, and select Enable JavaScript. JavaScript is enabled by default on Internet Explorer.
- For the web console, make sure the web console page is updated whenever you visit the page. From the Netscape 4.xx Edit menu, click Preferences, click Advanced, click Cache, and select Every time. From the Internet Explorer View menu, click Internet Options, click Settings from the General folder, and select Every visit to the page.
- For the web console, if you want to bookmark the Basic System Configuration page, make sure you either:
- From the Netscape 4.xx Communicator menu, select Bookmarks, and click Add Bookmark.
- From the Internet Explorer Favorites menu, click Add to Favorites.
- Using the right mouse button to bookmark the web console only saves the specific frame (image) of the web console.
- If the switch is directly connected to a terminal or terminal emulator rather than to a modem connection, you must configure the switch to the same baud rate and character format as the terminal or emulator.
- If the switch is dialing out, the configured baud rate of the switch does not change. The Match Remote Baud rate option (auto baud) applies only when the switch is answering an incoming call, and the switch matches a rate less than or equal to the configured rate. Upon disconnecting from a call, the switch reverts to the last configured baud rate.
- Make sure that the port monitoring feature (used for diagnostics) remains disabled during normal operation. Enabling the port monitoring feature can degrade the performance of the switch.
- Bridge group configuration is supported on the menu console and the command-line interface of the Enterprise Edition software, not the web console.
- When you have bridge groups enabled, the web console displays information for bridge group 1 only.
- Do not connect a port that belongs to more than one bridge group to another port in any of those bridge groups; this will cause a network loop.
- When the switch initializes after a reset, the port experiences the complete Spanning-Tree Protocol (STP) transition, as specified by IEEE 802.1D, even if Port Fast mode is enabled. Once the transition is complete, the Port Fast mode setting is enforced. This process ensures that no temporary loop is formed after a reset and allows STP to safely discover the topology of the network.
- Switch configuration changes take effect immediately. However, the switch requires 30 seconds to write changed parameters to permanent storage. If you turn off the switch before the changed parameters are written to permanent storage, the change does not take effect the next time the system is restarted.
- While performing a software upgrade, the switch might not respond to commands for as long as 1 minute. This is normal and correct. If you interrupt the transfer by turning the switch off and on, the firmware could be corrupted. If this happens, follow the procedure described in "Using the Diagnostic Console" in the "Troubleshooting" chapter of the Catalyst 2820 Series Installation and Configuration Guide.
- After removing or inserting a module from the switch, click Reload to display a fresh copy of the switch image on the Basic System Configuration page.
- When using Netscape 4.xx on Sun workstations, minimized and maximized pages of the web console might not refresh properly. Click Reload to refresh the page.
- In addition, when using Netscape 4.xx on PCs and Sun workstations, resized pages of the web console might not refresh properly. Click Reload to refresh the page. [CSCdj85607]
- Clicking Reload from any web console page displays a fresh copy of the Basic System Configuration page, not the currently displayed page.
- When using Netscape 4.xx on Windows 95, clicking Apply after making changes to the Port Security Table page sometimes displays a blank page. Click Stop to redisplay the Port Security Table page with your changes saved. [CSCdj95153]
- The web console does not check parameter values that are outside the value range. If you enter an invalid parameter value, the web console redisplays the console page with the original value. Parameter value ranges are shown in the menu console and in the Catalyst 2820 Series Installation and Configuration Guide.
- Do not use the following settings for the console port when upgrading the switch through the XMODEM protocol: 9600 baud, 7 data bits, 2 stop bits, and
Even parity. Use other settings or the default settings (9600 baud, 8 data bits,
1 stop bit, None parity) of the console port. [CSCdj87375]
- If you use bridge groups and Spanning-Tree Protocol (STP) is disabled on a bridge group, the switch does not forward the bridge protocol data units (BPDUs) received on any ports in the bridge group to other members of the bridge group. If you are running STP on the rest of your network, this might result in network loops if the switch connects to other switches. [CSCdk01665]
- If the problem occurs and you want to use bridge groups with STP disabled, you must disable STP on all bridge groups to allow the switch to forward received BPDUs. To do this, assign at least one port to all bridge groups, and then disable STP for each bridge group, using the Bridge Group Spanning Tree Configuration menu (or command-line interface or SNMP). You can then reassign the ports to whichever group you wish.
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