You can upgrade or downgrade the controller software only between certain releases. In some instances, you must first install an intermediate release prior to upgrading to software release 7.5.102.0.
Table
shows the upgrade path that you must follow before downloading software release 7.5.102.0.
Upgrade Path to Controller Software Release 7.5.102.0 |
Current Software Release | Upgrade Path to 7.5.102.0 Software |
7.0.x releases | You can upgrade directly to 7.5.102.0 Note If you have VLAN support and VLAN mappings defined on H-REAP access points and are currently using a 7.0.x controller software release that is prior to 7.0.240.0, we recommend that you upgrade to the 7.0.240.0 release and then upgrade to 7.5.102.0 to avoid losing those VLAN settings. |
7.1.91.0 | You can upgrade directly to 7.5.102.0 |
7.2.x releases | You can upgrade directly to 7.5.102.0 Note If you have an 802.11u HotSpot configuration on the WLANs, we recommend that you first upgrade to the 7.3.101.0 controller software release and then upgrade to the 7.5.102.0 controller software release. You must downgrade from the 7.5.102.0 controller software release to a 7.2.x controller software release if you have an 802.11u HotSpot configuration on the WLANs that is not supported. |
7.3.x releases | You can upgrade directly to 7.5.102.0 |
7.4.x releases | You can upgrade directly to 7.5.102.0 |
•When you upgrade the controller to an intermediate software release, you must wait until all of the access points that are associated with the controller are upgraded to the intermediate release before you install the latest controller software. In large networks, it can take some time to download the software on each access point.
•If you upgrade to the controller software release 7.5.102.0 from an earlier release, you must also upgrade to Cisco Prime Infrastructure 1.4 and MSE 7.5.
•You can upgrade to a new release of the controller software or downgrade to an older release even if Federal Information Processing Standard (FIPS) is enabled.
•When you upgrade to the latest software release, the software on the access points associated with the controller is also automatically upgraded. When an access point is loading software, each of its LEDs blinks in succession.
Please check the below guide which may be helpful for you
http://www.cisco.com/en/US/docs/wireless/controller/release/notes/crn75.html
