Hello Networking! I have 2x Cisco WLC 5508 in a HA setup. Those will be upgraded next week, and im a bit worried about upgrading them. Not only do i have to upgrade the IOS but also the FUS image. I've read around on Cisco forum and other forum's aswell, to find the best method to upgrade. Most documents is without the HA setup. What should i upgrade first FUS or Image? Will i just upload the FUS and IOS to the primary WLC, and start the upgrade? Will it auto upgrade the standby WLC? Should i be afraid that the old AP's connected wont be supported on the newest IOS release? Got some old AP's called AIR-LAP1142N-E-K9 and newer ones called AIR-AP3802I-E-K9
Right now it is running 8.2.151.0 it will be upgraded to 8.3.141.0 it seems this image is the newest on Cisco download page.
About FUS, will I be able to go directly to 1.9 from what below tells?
Product Version.................................. 8.2.151.0
Bootloader Version............................... 1.0.1
Field Recovery Image Version..................... 6.0.182.0
Firmware Version................................. FPGA 1.3, Env 1.6, USB console 1.27
Build Type....................................... DATA + WPS
Any words/tips to calm me down would be cool, haha =). First time i'm upgrading WLC's. Upgraded alot of firewalls and routers/switches.
Greetings from Denmark!
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