topic How to keep high availability or N+1 for Embedded Wireless Controller in fabric mode in Wireless

How to keep high availability or N+1 for Embedded Wireless Controller in fabric mode

khalilsoltani47714 — Mon, 05 Jul 2021 20:17:51 GMT

Hi,

I configured two switch Catalyst 9300 as a Embedded Wireless Controller (9800) in the DNA Center server version 2.1.2.4 in fabric mode.
MY question, how to keep high availability in two Embedded Wireless controllers is we using the concept N+1 HA.
I found in cisco’s official documentation
• The N+1 HA configuration is supported only in a nonfabric deployment.

I created a fabric, two border Node 9500, Edges Nodes 9300 integrations with ISE with Success everything goes just fine
how to ensure high availability between two switchs Catalyst 9300 works as Embedded Wirelles Control (9800) as I said that N+1 HA works safe non fabric deployment

Is there an official cisco guide that talked about high availability or N+1 for embedded wireless on fabric mode ??
Is Feasible high availability or N+1 for EWC on mode fabric mode from version DNA Center 2.1.2.4 or later ?

Best regard,

Re: How to keep high availability or N+1 for Embedded Wireless Controller in fabric mode

balaji.bandi — Tue, 11 May 2021 14:55:11 GMT

Look at the below document and Limitations : (N+1 redundancy design)

https://www.cisco.com/c/en/us/products/collateral/wireless/catalyst-9800-series-wireless-controllers/guide-c07-744299.html

Re: How to keep high availability or N+1 for Embedded Wireless Controller in fabric mode

khalilsoltani47714 — Tue, 11 May 2021 15:40:02 GMT

Thanks for your feedback @balaji.bandi
now i'm a little confused about EWC Catalyst 9300

Embedded Wireless Controller in fabric mode is support HA or N+1 ???

Re: How to keep high availability or N+1 for Embedded Wireless Controller in fabric mode

balaji.bandi — Tue, 11 May 2021 16:21:13 GMT

Not tested with Cat 9300 switches. biut as per the doc :

Will Embedded Wireless on Cat9k using WebUI support high availability?

A. Yes, Embedded Wireless on Cat9k using WebUI will support N+1 capability (Primary and secondary controller) on Catalyst 9300, 9400 and 9500 switches. Access point and client SSO between two stacked Cisco Catalyst 9300 Series Switches is supported. Catalyst 9400 can support SSO through dual-sup on a single chassis. Catalyst 9500 HA SSO is not supported.