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Beginner

WLC RADIUS Server Failover - Passive mode timer

In 7.2 WLC code, it appears it is now possible to specify which RADIUS servers are used as the preferred server for authentication (

Security > AAA > RADIUS > Fallback to open the RADIUS > Fallback Parameters ).

There are 3 mode for this: off, passive & active.

In the passive mode, the operation is described in the config guide as :

Passive

—Causes the controller to revert to a server with a lower priority from the available backup servers without using extraneous probe messages. The controller ignores all inactive servers for a time period and retries later when a RADIUS message needs to be sent.

Does anyone know how long this 'time period' is? If it is only a few seconds, then it could be that user authentications are being used to test against a failed RADIUS server frequently & will experience annoying time-out delays, causing support calls etc.

Anyone know what it is, or if its configurable? I don't see anything in the docs...

Nigel.

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3 REPLIES 3
Cisco Employee

WLC RADIUS Server Failover - Passive mode timer

Beginner

Re: WLC RADIUS Server Failover - Passive mode timer

Found this query while searching for the Fallback methods. My WLC is 8.0 and i can see that the time for passive fall back is configurable (default 300sec)

VIP Advisor

Re: WLC RADIUS Server Failover - Passive mode timer

Hi

Default is 300 seconds.

 

 

 

 

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