Recomended software for 8510 controller

[HVO-cisco]

Hi, what is the latest recomended Controller software for 8510 series ?

And is there a good guide how to Upgrade HA Controllers ?

Johann Folkestad

[Sandeep Choudhary]

Use either 8.0.140.0 or 8.2.151.0

These are the two stable version which I can recommend.

Regards

Dont forget to rate helpful posts

[HVO-cisco]

Thanks, we are running 8.2.141.0, so I'll go for 8.2.151.0

Regards
JFolkestad

[Freerk Terpstra]

Just out of curiosity, why do you want to upgrade? Are there issues you are currently running into which you want to resolve?

In my own experience with AireOS deployments: unless there is a strong reason based on required functionality or a major security issue which you cannot mitigate: stick to your "stable" situation.

[Leo Laohoo]

I'd stick with 8.2.141.0.

[M. Wisely]

https://www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/200046-TAC-Recommended-AireOS.html

The above link is a good source for choosing release.

What HA are you using, N+1 or AP/Client SSO?

[HVO-cisco]

Thanks .

Redundancy mode is SSO

Regards

JFolkestad

[M. Wisely]

With SSO you just need to follow the normal upgrade procedure on the active controller and it'll transfer the updated code onto secondary.

Just make sure to check the peer status is STANDBY HOT before rebooting otherwise the new code will not be transferred.

Both controllers will go down when you reboot the active one. You can do a pre-upgrade of the APs one you've transferred the new code to reduce downtime.