Solved: AAA Server Liveness Check

R Kirch · ‎03-10-2025

On my switch, I have multiple aaa servers configured. I can see this with the `show aaa servers` command. However, one of the servers is reporting as DEAD. This server is in fact up and pingable.

Does anybody happen to know what methods a switch uses for liveness check to aaa servers? I want to make sure this traffic is being allowed, but can't find any documentation on the process.

Thanks for any help.

marce1000 · ‎03-10-2025

- Have a look at https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9200/software/release/17-2/configuration_guide/sec/b_172_sec_9200_cg/configuring_aaa_dead-server_detection.html
It's kind of the reverse , but helps in case the radius server did not respond for a short time (e.g.)

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

View solution in original post

marce1000 · ‎03-10-2025

- Have a look at https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst9200/software/release/17-2/configuration_guide/sec/b_172_sec_9200_cg/configuring_aaa_dead-server_detection.html
It's kind of the reverse , but helps in case the radius server did not respond for a short time (e.g.)

M.

-- Each morning when I wake up and look into the mirror I always say ' Why am I so brilliant ? '
When the mirror will then always repond to me with ' The only thing that exceeds your brilliance is your beauty! '

R Kirch · ‎03-10-2025

Found the answer in that article. Thanks!