WLC upgrade from 7.4.121.0 to 7.4.140.0

[mehtarahul1998]

Hi ,

We are performing WLC upgrade from 7.4.121.0 to 7.4.140.0 and they are deployed in our network as standalone mode ,Is there any bug reported for the version 7.4.140.0 and also while upgrading the firmware from 7.4.121.0 to 7.4.140.0 ,Do we need to upgrade the Field Recovery Image Version as well .

Current version for  Field Recovery Image is --->7.0.112.21,

Also please let me know next stable version ,that would be really appreciated .

Thanks

Rahul

[Robert Hillcoat]

Why don't you read the release notes? 

http://www.cisco.com/c/en/us/support/wireless/wireless-lan-controller-software/products-release-notes-list.html 

[Prakash Parvathala]

Upgrading to Controller Software Release 7.4.140.0

Guidelines and Limitations

• When H-REAP access points that are associated with a controller that has all the 7.0.x software releases that are prior to 7.0.240.0 upgrade to the 7.4.140.0 release, the access points lose their VLAN support configuration if it was enabled. The VLAN mappings revert to the default values of the VLAN of the associated interface. This issue does not occur if you upgrade from 7.0.240.0 or later 7.0.x release to the 7.4.140.0 release.
• We recommend that you install Wireless Controller Field Upgrade Software for Release 1.7.0.0-FUS, which is a special AES package that contains several system-related component upgrades. These include the bootloader, field recovery image, and FPGA/MCU firmware. Installing the FUS image requires special attention because it installs some critical firmware. The FUS image is independent of the runtime image. For more information, see http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/fus_rn_1_7_0_0.html.
• If you are using a Cisco 2500 Series controller and you intend to use the Application Visibility and Control (AVC) and NetFlow protocol features, you must install Wireless Controller Field Upgrade Software for Release 1.8.0.0-FUS. This is not required if you are using other controller hardware models. For more information, see http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/fus_1_8_0_0.html.
• When you enable LAG on a Cisco 2500 Series Controller with which a direct-connect access point is associated, the direct-connect access point dissociates with the controller. When LAG is in enabled state, the direct-connect access points are not supported. For direct-connect access points to be supported, you must disable LAG and reboot the controller.
• If LAG is enabled on the Cisco 2500 Series Controller and the controller is downgraded to a non-LAG aware release, the port information is lost and it requires manual recovery.
• After you upgrade to the 7.4 release, networks that were not affected by the existing preauthentication ACLs might not work because the rules are now enforced. That is, networks with clients configured with static DNS servers might not work unless the static server is defined in the preauthentication ACL.
• On 7500 controllers if FIPS is enabled, the reduced boot options are displayed only after a bootloader upgrade.

check the below upgraded release notes for more information

http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/crn74mr04.html

[mehtarahul1998]

thanks for release notes  ,I will check tomorrow whether I it is required to upgrade FUS image..

[mehtarahul1998]

Hi ,

My FPGA is already 1.7 ,So I don't think it is required to upgrade FUS

Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 7.4.121.0
Bootloader Version............................... 1.0.16
Field Recovery Image Version..................... 7.0.112.21
Firmware Version................................. FPGA 1.7, Env 1.8, USB console 2.2
Build Type....................................... DATA + WPS

Can anyone please confirm on this ,Controller model is 5508 .

[Sandeep Choudhary]

*** yes you do not require to upgrade Field Recovery Image.

Its not a must to upgrade FUS on each and every controller.

If you want to have FUS image on WLC then you can go for  FUS version 1.9.0.0.

http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/fus_rn_OL-31390-01.html

If you go for FUS 1.9 then these component will be upgrade..

• Field Recovery Image is upgraded from 7.0.112.21 to 7.6.101.1
• Bootloader is upgraded to 1.0.20
• Offline Field Diagnostics is upgraded from 0.9.28 to 0.9.35
• FPGA Revision version is upgraded to 1.7
• Environment Controller (MCU) Image version is upgraded to 1.8
• USB Console Revision version is upgraded to 2.2

Regards

Don't forget to rate helpful posts

[mohanak]

We recommend that you install Wireless Controller Field Upgrade Software for Release 1.7.0.0-FUS, which is a special AES package that contains several system-related component upgrades. These include the bootloader, field recovery image, and FPGA/MCU firmware. Installing the FUS image requires special attention because it installs some critical firmware. The FUS image is independent of the runtime image. For more information, see http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/fus_rn_1_7_0_0.html.

http://www.cisco.com/c/en/us/td/docs/wireless/controller/release/notes/crn74mr04.html#68333