Table Of Contents
Release Notes for Cisco Aironet 350 Series Workgroup Bridges Running Firmware
December 5, 2003
These release notes cover a software upgrade issue pertaining to the Cisco Aironet 350 Series Workgroup Bridge, which is described in caveat CSCec11918. These release notes provide instructions for correcting the problem by running an upgrade patch utility before upgrading to version 8.85.
These release notes describe the following topics:
Defect caveat CSCec11918 identifies and describes an erroneous behavior that occurs when you upgrade the software on a Cisco Aironet 350 Series Workgroup Bridge. It is less likely to occur when you change the workgroup bridge configuration. The failure mode associated with this defect is that after the software upgrade is attempted, the workgroup bridge does not accept the upgrade.
Version 8.85 resolves this problem when it is installed immediately after running the upgrade patch.
Note The upgrade patch and version 8.85 are intended for use only if a firmware upgrade is required. Cisco recommends not running the patch or upgrading the firmware unless it is absolutely necessary to do so.
You must have a Cisco Aironet 350 Series Workgroup Bridge to install the upgrade patch and firmware version 8.85.
Minimum Firmware Version Required on Access Points
Access points with which the workgroup bridge associates must contain firmware version 11.06 or later.
Upgrading to a New Firmware Release
Finding the Firmware Version
The firmware version number is in the upper-left corner of most management screens in the web-browser interface and at the top of the home (Summary Status) page in the command-line interface.
For instructions on installing access point and bridge firmware:
Step 1 Follow this link to the Software Center on Cisco.com and download firmware version 8.84:
Step 2 Select Option #1: Aironet Wireless Software Selector. The Aironet Wireless Software Selector window appears.
Step 3 Click the drop-down arrow to view the valid values for the Product Type field.
Step 4 Click Workgroup Bridge.
Step 5 Click Submit. The Step 2 of 3 page appears.
Step 6 Click the drop-down arrow to view the valid values in the Model Number field.
Step 7 Select 350 Series (802.11b).
Step 8 Click Submit. The Step 3 of 3 page appears.
Step 9 To download the current release, click the Current Release (Recommended) radio button.
Step 10 Click Submit. The software selector displays the categories you selected and lists the available download methods.
Step 11 Review your selections. If you want to change anything, use your browser's back button to return to the previous software selector page.
Step 12 When you are ready to download the firmware, go to the Standard Installation section and click Workgroup Bridge Bundle. The Aironet Software Selector encryption authorization form appears.
Step 13 Complete the required fields on the authorization form and check the boxes indicating agreement with the download agreement.
Step 14 Type your name exactly as you entered it in the First Name and Last Name fields.
Step 15 Click Submit. The Software Download Software License Agreement page appears.
Step 16 Review the license agreement and click Accept. The File Download window appears.
Step 17 Click Save and select a location on your system to download the file to.
The upgrade patch and firmware must be installed concurrently. Do not begin the process unless you intend to complete it in one operation.
Running the Upgrade Patch
The procedure below lists the steps to install the patch using the Windows command prompt. If you prefer, you can run the patch from the Windows task bar by selecting Start > Run. Make sure you include the workgroup bridge's IP address following the command in the Run field. If you use this method to run the patch, the window may close too fast and prevent you from seeing all the installation status messages the patch displays.
Follow these steps to install the upgrade patch from the Windows command prompt:
Step 1 Identify a Windows-based PC on the same network segment as the workgroup bridge you intend to upgrade.
Step 2 Identify the IP address of the workgroup bridge you intend to upgrade.
Note If you do not know the workgroup bridge's IP address, your system administrator can provide it for you or you can use the IP Setup Utility (IPSU) to retrieve it. IPSU is available on Cisco.com at the following URL:
Note If you use IPSU, you will also need the workgroup bridge's MAC address. The MAC address is located on the label on the back of the workgroup bridge.
Step 3 On your Windows-based PC, open a command prompt window.
Step 4 Change to the drive and directory where you downloaded the upgrade patch.
Step 5 Run the patch by entering the following command:upgrade_patch <IP_addr>(Where <IP_addr> is the IP address of the workgroup bridge you intend to upgrade).
Step 6 Press Enter. The following message appears:This utility is intended to be used on the Cisco Aironet 350 Workgroup Bridge to prepare it for software upgrade.PLEASE DO NOT REMOVE POWER IN BETWEEN USING THIS UTILITY AND PERFORMING THE SOFTWARE UPGRADE!!!!Please proceed with caution, this upgrade process should only be performed if absolutely needed.Would you like to proceed? <y/n>y
Step 7 Press Enter to install the upgrade patch utility.
The installation process begins. The following status messages appear as they occur:Step 1 completeStep 2 completeStep 3 completeStep 4 completeStep 5 completeStep 6 completeStep 7 completeStep 8 completeYour Cisco Aironet 350 Workgroup Bridge is ready to be upgraded in the usual manner.PLEASE DO NOT REMOVE POWER IN BETWEEN USING THIS UTILITY AND PERFORMING THE SOFTWARE UPGRADE!!!!
Note Do not restart the workgroup bridge or remove power. Go immediately to Step 8.
Step 8 Open a Telnet session or browse to the workgroup bridge and install version 8.85.
If the patch installation was unsuccessful, the following message appears:final status unsuccessfulYour Cisco Aironet 350 Workgroup Bridge is NOT ready to be upgraded.
Before contacting Cisco, verify that you are able to communicate with the workgroup bridge by opening a Telnet or browser session. If you are able to establish communications, try running the patch again. If you are unable to establish communications, check the troubleshooting chapter of the Cisco Aironet 350 Series Workgroup Bridge Hardware Installation Guide. The guide is available on Cisco.com at the following URL:
Bridge Loop May Occur with Incorrect Network Topology
If the workgroup bridge is connected to the wired LAN and is communicating with an access point on the same LAN, a network problem known as a bridge loop can occur. Avoid a bridge loop by disconnecting the workgroup bridge from the wired LAN immediately after you configure it. Figure 1 shows the network configuration in which the loop occurs.
Figure 1 Bridge Loop Caused by a Workgroup Bridge Connected to the Wired LAN
A bridge loop can also occur if two or more workgroup bridges are connected to the same remote hub. To prevent this bridge loop, always connect only one workgroup bridge to a remote hub. Figure 2 shows the network configuration in which the loop occurs.
Figure 2 Bridge Loop Caused by Two Workgroup Bridges on the Same Remote Hub
These release notes address only caveat CSCEC11918, which is described in previous sections.
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