topic Re: C9800 17.9.x - not compatible with ISE 3.1 ? in Wireless

C9800 17.9.x - not compatible with ISE 3.1 ?

it-lisens — Tue, 11 Jul 2023 13:14:03 GMT

We are running ISE 3.1 and I have plans to upgrade the C9800 to 17.9.x (which is the recommended one). But I see in the release notes that ISE 3.1 is not listed in the compatibility matrix.

Is it true that ISE 3.1 is not supported?!

https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-9/release-notes/rn-17-9-9800.html#id_104423

Re: C9800 17.9.x - not compatible with ISE 3.1 ?

jagan.chowdam — Tue, 11 Jul 2023 13:17:14 GMT

As per the Wireless Solution Software Compatibility Matrix Table 1. it is compatible.

Ref: https://www.cisco.com/c/en/us/td/docs/wireless/compatibility/matrix/compatibility-matrix.html#cat-9800_ctrls

Re: C9800 17.9.x - not compatible with ISE 3.1 ?

Dustin Anderson — Tue, 11 Jul 2023 13:20:13 GMT

I'm guessing the doc is just not updated when it lists back to 2.4. I doubt you would have issues, but you should have some test wireless to verify with.

If it only listed 3.2 I would be more wary, but I haven't seen issues with newer ISE code dropping compatibility.

Re: C9800 17.9.x - not compatible with ISE 3.1 ?

Todd S — Mon, 04 Aug 2025 15:29:36 GMT

I'm interested to know what wouldn't be compatible. ISE is radius standards based. I'm assuming its the advanced features like SGT's and such that need this requirement.