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Cisco Bug: CSCup59877 - %DOT11-2-NO_CHAN_AVAIL_CTRL: Interface Dot11Radio2, no channel available

Last Modified

Oct 29, 2015

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases

7.6(120.0)

Description (partial)

Symptom:
AP with 80MHz radio may disjoin from WLC after DFS event,

%DOT11-2-NO_CHAN_AVAIL_CTRL: Interface Dot11Radio2, no channel available.
%DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to X.X.X.X:5246

This event will happen definitely when all 80MHz channels are exhausted

Conditions:
AP exhausted a 11a channel on Dot11Radio2 by DFS with following log message:-
%DOT11-2-NO_CHAN_AVAIL_CTRL: Interface Dot11Radio2, no channel available.
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