topic Re: upgrading AireOS in Wireless

Upgrading WLC IOS version

interfacedy — Sat, 06 Nov 2021 15:50:38 GMT

Hi Please see the section of cisco document (its link is listed below)

8.5 Mainline

The 8.5 Mainline branch supports 5508/8510/5520/8540/3504/2504/7510/WiSM2/vWLC controllers. It supports intercontroller mobility (IRCM) between AireOS and old "New Mobility" ("Converged Access") controllers (5760/3850/3650.) It does not support IRCM with 9800 controllers. For 8.5 Mainline deployments, TAC recommends 8.5.171.0.

https://www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/200046-tac-recommended-aireos.html

The question is why TAC recommends 8.5.171.0 for upgrading AireOS since lateted recommended one is 8.10.162.0?

Thank you

Re: upgrading AireOS

Mark Elsen — Sat, 06 Nov 2021 14:31:13 GMT

- But the paragraph only focuses on the 8.5.x train (only).

Re: upgrading AireOS

interfacedy — Sat, 06 Nov 2021 15:34:40 GMT

Thanks marce1000 for your reply. Not very sure your reply. Do you mean if we need to use 8.5, we can use 8.5.171.0 that cisco recommended?

Re: upgrading AireOS

Mark Elsen — Sat, 06 Nov 2021 18:17:56 GMT

- Yes ,

Re: Upgrading WLC IOS version

Arshad Safrulla — Sun, 07 Nov 2021 08:51:08 GMT

8.5 has IRCM releases and Mainline releases.

Mainline releases are for WLC's which doesn't require any Mobility tunnels with 9800. ICRM releases are required to build Mobility tunnels with 9800 WLC's.

Re: Upgrading WLC IOS version

interfacedy — Sun, 07 Nov 2021 15:08:29 GMT

Does 8.10 have IRCM releases and Mainline releases?

Re: Upgrading WLC IOS version

Mark Elsen — Sun, 07 Nov 2021 17:36:22 GMT

- It's a bit of a wrong question , you need to look at IRCM compatibility requirements only for inter-controller roaming when controllers have different AireOs releases , in that case requirements according to this table must be met :

https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html#ircm_aireos_rls