Cisco Cisco IOS XE 3.5E 技术手册

*%CAPWAP−3−ALREADY_IN_JOIN: 1 wcm:  Dropping join request from AP f84f.573b.8cd0 −

AP is already in joined state

*%CAPWAP−3−DATA_TUNNEL_DELETE_ERR2: 1 wcm:  Failed to delete CAPWAP data tunnel

with interface id: 0x0 from internal database. Reason: AVL database entry not found

This message does not help find the root cause of the issue. However, the trace shows this message.

#show trace messages group−ap

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MIC AP is not allowed to join by config

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This section provides some helpful tips.

When you start the troubleshoot process, clear previously collected traces for the specific feature. In
this case, capwap, group−ap, and all filtered traces.

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# Set trace control sys−filtered−trace  >> this clears the filtered traces and cannot be run on a
per−feature basis

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AP join on converged access controllers makes use of the radio MAC address of the AP. So, when
you set a filter for the trace, make use of the radio or base MAC address of the AP. Enter the show ap
join stats summary command in order to find the radio MAC address.

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Issues with certificates are handled by IOSd and require the use of debugs, not traces, for further
diagnosis.

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Updated: Mar 17, 2014

Document ID: 117551