topic Re: Downgrade issues in Wireless

Downgrade issues

shahinmadambi585 — Fri, 13 May 2022 03:24:09 GMT

What are the known issues/bugs while downgrading from 17.6.1 to 17.3.5a (9800-40)?

Re: Downgrade issues

Leo Laohoo — Fri, 13 May 2022 03:00:04 GMT

For obvious reasons there will be commands that are not "compatible" with 17.3.X.

Re: Downgrade issues

afsalperingodan — Fri, 13 May 2022 04:43:10 GMT

Downgrades are not officially supported, and config loss of new features can occur. However, as downgrades can happen in the real world, this document still lists the most common traps to avoid when downgrading.

To find the information you need, check the version you are downgrading from ( the version before the downgrade) from the below documents.
https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/216838-upgrade-and-downgrade-of-catalyst-9800-c.html#anc33

I hope this helps.

Re: Downgrade issues

Mark Elsen — Fri, 13 May 2022 08:25:51 GMT

- If you would decide to go ahead you can for instance afterwards use (CLI) show tech wireless and have the output reviewed by : https://cway.cisco.com/tools/WirelessAnalyzer/ , this remains useful when using other procedures too, to have a checkup of the configuration when you are on the targeted version.