%LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down

Konstantin Kabassanov · ‎12-09-2011

Hello,

On a 4402 wireless controller (7.0.220.0) with LAP1242AG-E-K9 and LAP1252AG-E-K9 access points I receive lots of messages like this:

Dec 9 12:55:16 ap-a1 1466: AP:001a.2f58.d4d6: *Dec 9 11:55:16.174: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to down

Dec 9 12:55:17 ap-a1 1467: AP:001a.2f58.d4d6: *Dec 9 11:55:16.211: %LINK-3-UPDOWN: Interface Dot11Radio0, changed state to up

what is a little bit annoying, in particular for voice communications.

Is there a way to get more information from any logs or is there a similar problem discussion anywhere on this forum?

Thanks.

pcroak · ‎12-09-2011

Hello,

Do you happen to have RLDP enabled on your WLC? (show rogue ap rldp summary)

If yes, this behavior is expected, as the AP is attempting to associate to rogue APs.

If no, we need to gather some more information -- could you pull the output of a "show controller d0" from one of the APs experiencing this issue?

-Pat

Konstantin Kabassanov · ‎12-09-2011

Hello,

Yes, RLDP is enabled on the WLC. That should explain this behaviour.

I used the "show controller d0" also and it gave me (at the end of its output) this summary:

Last radio reset code: 62
Radio resets - total:2732 retries:0 failed:0
Reset Stats: Start Cnt: 2693, Recovery: Cnt 0, Last Ret: 0, Fails: 0, Recvry Status: Stalled NO, In Prog NO
Code/Count: 37/00007 51/00072 52/00038 54/00001
Code/Count: 62/02357 64/00128 65/00128 67/00001

Is the error code 62 coherent with this?