06-24-2019 07:43 AM
We have 20 Cisco WLC 5509 that we are trying to upgrade ios.
The AP's point to 2 primary and secondary controllers.
All 300 AP's are spread out across 20 Controllers.
Question.
1. Can i upgrade firmware in controllers one by one in sequence?
2. Do i need to upgrade field recovery image version?
3. Do i need to predownload AP image before reloading WLC with new image?
4. If the latest firmware version needs a jump to an intermediate version (as per the release notes). Do i need the system to fully come up with an intermediate firmware before upgrading it to latest code. Essentially doing code upgrade twice?
Thanks in advance.
06-24-2019 11:05 PM
Bump
06-25-2019 12:55 AM
06-25-2019 10:13 AM - edited 06-25-2019 10:13 AM
Current Version--8.0.140
Trying to upgrade to Latest--8.5.140
Field recovery image version 7.0
06-26-2019 12:56 AM - edited 06-26-2019 12:56 AM
NOTE: The latest is 8.5.151.0.
Read the Release Notes carefully. It is not possible to go from 8.0.X.X to 8.5.X.X without upgrading to an intermediate version first like 8.2.16X.0 or 8.3.X.X.
06-26-2019 04:19 PM
Yes I am aware of that.
I am asking how should I proceed to upgrade to 8.2 version. I have 20 controllers and couple hundred AP's spread across all 20 controllers.
Do I have to upgrade primary and secondary controller that AP points to simultaneously?
06-26-2019 11:55 PM
Discover and save your favorite ideas. Come back to expert answers, step-by-step guides, recent topics, and more.
New here? Get started with these tips. How to use Community New member guide