Primary-secondary radius server configuration

Hi all ,
      I have a couple of ACS 5.2 configured as active and backup and I am   doing dot 1x authentication using these servers . I have configured the  switch with the bellow configuration.
radius-server host 10.0.10.15 auth-port 1645 acct-port 1646
radius-server host 10.0.10.16 auth-port 1645 acct-port 1646
radius-server key 7 aaaaaaaaaaaaaa
please help to understand what will happen in switch
1) in case of primary failure
2)in case if primary returns alive .
thanks in advance ,
Selva

Hi Selva,
You need to post all your AAA config. the above lines show you added the radius servers but it is not necessarily all server will be reached. We need to look into the AAA config to see what server groups are configured and what servers under the groups.
In general, if things are configured correctly:
- If the primary did not reply at all (down, not reachable...etc) the AAA client (switch in your case) will try the next radius server.
- If the primary server replies (with access-reject, error, ...etc) the AAA client (switch in your case) send auth failure to the host.
HTH
Amjad
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    Seidl Michael | http://www.techguy.at |
    twitter.com/techguyat | facebook.com/techguyat

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