WLC Upgrade Procedure

[Robo123]

Hi ,

Can some one please share the IOS Upgrade procedure for the Cisco Catalyst 9800-L which is in HA mode(WLC is in Install mode).

It will be great if you can help with the roll back plan as well.

[Leo Laohoo]

Upgrading the Cisco Catalyst 9800 Wireless Controller Software

NOTE: 

1. Read the Release Notes carefully
2. If applicable, do not forget to upgrade the ROMMON
3. If applicable, do not forget to update the SMU, AP Service Pack and AP Device Pack

[Robo123]

Thanks Leo.

I have Gone through this already .Could you please help me to know ho to perform the upgrade in HA setup.

[Kasun Bandara]

Hi,

use below procedure to upgrade the WLC. make sure everything is complied and checked with upgrade guide and release notes.

https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-2/config-guide/b_wl_17_2_cg/b_wl_17_2_cg_chapter_010010111.html

rate this and mark as answer if this solved your concerns