Release Notes for Cisco Wireless Controller Field Upgrade Software, Release 1.10.0.0

Release Notes for Cisco Wireless Controller Field Upgrade Software, Release 1.10.0.0

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First Published: May 12, 2015

Contents

These release notes contain the following topics:

• Introduction
• Installing Field Upgrade Software (CLI)
• Upgrading FUS Image
• Troubleshooting
• Related Documentation

Introduction

Cisco Wireless Controller (WLC) Field Upgrade Software (FUS) is a special AES package that performs various system-related component upgrades. We recommend that you install the FUS image to upgrade components such as the bootloader, emergency image, FPGA/MCU, and other firmware to their latest respective versions.

If your Emergency Image Version is prior to 8.1, we recommend that you upgrade to Cisco Wireless Controller Field Upgrade Software, Release 1.10.0.0, for the following platforms:

• Cisco Flex 7500 Series Wireless Controllers
• Cisco 8500 Series Wireless Controllers
• Cisco Virtual Wireless Controller

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Note Cisco Wireless Controller Field Upgrade Software, Release 1.10.0.0, is not required for Cisco 2500 Series, 5500 Series Wireless Controllers, and Cisco WiSM2.

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Note You can check the Emergency Image Version by entering the show sysinfo command on the WLC CLI.

Following are the reasons why you must install Cisco Wireless Controller Field Upgrade Software, Release 1.10.0.0:

• The Emergency Image Version 8.1.102.0 has kdump facility enabled to handle kernel panic dump collection. If you do not upgrade to Emergency Image Version 8.1.102.0, any kdump function may cause the Cisco WLC platform to not work as expected on a kernel panic or watchdog failure. The following messages are displayed:

• If the Emergency Image Version is prior to 8.0, the following error message is displayed during bootup:

The Cisco WLC disables the kdump functionality and continues.

Upgrading to Cisco Wireless Controller Field Upgrade Software, Release 1.10.0.0 removes this error message.

Downloading Field Upgrade Software

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Step 1 Go to the Cisco Software Center at this URL: https://software.cisco.com/download/navigator.html

Step 2 Choose Products > Wireless > Wireless LAN Controller.

Step 3 Choose either of the following depending on the controller platform you use:

• Integrated Controllers and Controller Modules
• Standalone Controllers

Step 4 Choose the controller model number or name. The Download Software page is displayed.

Step 5 Choose Wireless LAN Controller Software.

Step 6 Click a controller software release. The software releases are labeled as follows to help you determine which release to download:

• Early Deployment (ED) —These software releases provide new features and new hardware platform support as well as bug fixes.
• Maintenance Deployment (MD) —These software releases provide bug fixes and ongoing software maintenance.
• Deferred (DF) —These software releases have been deferred. We recommend that you migrate to an upgraded release.

Step 7 Click a software release number. Click the filename (for example, AIR-CT8500-K9-1-10-0-0-FUS.aes). The following AES files are available for various controller platforms:

– AIR-CT7500-K9-1-10-0-0-FUS.aes

– AIR-CT8500-K9-1-10-0-0-FUS.aes

– AIR-CTVM-K9-1-10-0-0-FUS.aes

Step 8 Click Download.

Step 9 Read Cisco’s End User Software License Agreement and then click Agree.

Step 10 Save the file to your hard drive.

Step 11 Copy the AES file (for example AIR-CT8500-K9-1-10-0-0-FUS.aes) to the default directory on your TFTP or FTP server.

 

Installing Field Upgrade Software (CLI)

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Step 1 Enter the following commands on the Cisco WLC CLI:

a. transfer download datatype code

b. transfer download serverip serverip

c. transfer download mode { tftp | ftp }

d. transfer download username user

e. transfer download password password

f. transfer download filename filename.aes

g. transfer download path /

h. transfer download start

Step 2 Enter the following command to reboot the Cisco WLC:

reset system

Information similar to the following is displayed; this is a sample output from a Cisco 8500 Series WLC:

Upgrading FUS Image

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Step 1 Upload your controller configuration files to a server to back them up.

Step 2 Get the controller software image as defined in Downloading Field Upgrade Software, and follow these steps:

a. Choose Wireless > Wireless LAN Controller. The following options are available: Integrated Controllers and Controller Modules and Standalone Controllers.

b. Depending on your controller platform, click one of the above options.

c. Click the controller model number or name. The Download Software page is displayed.

d. Click a controller software release. The software releases are labeled as follows to help you determine which release to download:

– Early Deployment (ED) —These software releases provide new features, new hardware platform support, and bug fixes.

– Maintenance Deployment (MD) —These software releases provide bug fixes and ongoing software maintenance.

– Deferred (DF) —These software releases have been deferred. We recommend that you migrate to an upgraded release.

e. Choose a software release number.

f. Click the filename (for example, AIR-CT8500-K9-1-10-0-0-FUS.aes).

g. Click Download.

h. Read Cisco’s End User Software License Agreement and then click Agree.

i. Save the file to your hard drive.

j. Repeat steps a through k to download the remaining file.

Step 3 Copy the controller software image (filename.aes) to the default directory on your TFTP or FTP server.

Step 4 (Optional) Disable the 802.11 networks.

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Note For busy networks, controllers on high utilization, or small controller platforms, we recommend that you disable the 802.11 networks as a precautionary measure.

Step 5 Disable any WLANs on the controller.

Step 6 Choose Commands > Download File to open the Download File to Controller page.

Step 7 From the File Type drop-down list, choose Code.

Step 8 From the Transfer Mode drop-down list, choose from the following options:

• TFTP
• FTP

Step 9 In the IP Address text box, enter the IP address of the server.

If you are using a TFTP server, the default values of 10 retries and 6 seconds for the Maximum Retries and Timeout text boxes should work correctly without any adjustment. However, you can change these values.

Step 10 If you are using a TFTP server, the default values of 10 retries for the Maximum Retries text field, and 6 seconds for the Timeout text field should work correctly without any adjustment. However, you can change these values if desired. To do so, enter the maximum number of times that the TFTP server attempts to download the software in the Maximum Retries text box and the amount of time (in seconds) that the TFTP server attempts to download the software in the Timeout text box.

Step 11 In the File Path text box, enter the directory path of the software.

Step 12 In the File Name text box, enter the name of the controller software file (for example, AIR-CT8500-K9-1-10-0-0-FUS.aes).

Step 13 If you are using an FTP server, follow these steps:

• In the Server Login Username text box, enter the username to log into the FTP server.
• In the Server Login Password text box, enter the password to log into the FTP server.
• In the Server Port Number text box, enter the port number on the FTP server through which the download occurs. The default value is 21.

Step 14 Click Download to download the software to the controller. A message appears indicating the status of the download.

Step 15 After the download is complete, click Reboot.

Step 16 If prompted to save your changes, click Save and Reboot.

Step 17 Click OK to confirm.

Step 18 To verify the controller software version, choose Monitor on the controller GUI and see Software Version in the Controller Summary area.

 

Service and Support

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service request, and gathering additional information, see What’s New in Cisco Product Documentation at: http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html

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