topic Re: WLC HA SSO - Questions in Wireless

WLC HA SSO - Questions

morabusa — Mon, 05 Jul 2021 18:12:37 GMT

Hello,

I have some questions regarding the WLC HA SSO which I would like to clarify:

I have two WLC 2504 running HA SSO. I have read that HA SSO is not (or was not) supported for WLC 2504 but I thik this was before and now I can configure HA SSO on WLC 2504 since version 8.0, right?

I am trying to find useful guides to know how exactly SSO works but I cannot find anything regarding HA SSO behavior in some circumstances. For example, what happens if the Active controller interface for a SSID gets down? The Standby Controller becomes Active with the same interface IP address, right?

Thank you very much.

Best Regards.

Re: WLC HA SSO - Questions

Leo Laohoo — Mon, 28 Oct 2019 21:15:12 GMT

2504 will not support SSO in any version.
2504 can still support the "regular" switch over of APs using the primary/secondary/tertiary controller.

Re: WLC HA SSO - Questions

Haydn Andrews — Mon, 28 Oct 2019 21:07:04 GMT

Here is the WLC HA deployment guide for SSO:

https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-7/High_Availability_DG.html#pgfId-46844

And the deployment guide on HA in general:

https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/high_availability.html

SSO the boxes are seen as a single WLC.