RAP DEBUG信息查看
命令：debug capwap pa
Nov 15 16:20:32: %CAPWAP-7-PKT_SEND: Send [discovery request] to [1.1.1.1 : 5246], seq is [116], length is [183].
*Nov 15 16:20:32: %CAPWAP-7-PKT_SEND: Send [discovery request] to [255.255.255.255 : 5246], seq is [117], length is [183].
*Nov 15 16:20:32: %CAPWAP-7-PKT_SEND: Send [discovery request] to [224.0.1.140 : 5246], seq is [118], length is [183].
*Nov 15 16:20:32: %CAPWAP-7-PKT_SEND: Send [discovery request] to [ff02::18c : 5246], seq is [119], length is [183].
-----AP发送discovery 包查询AC（如果一直卡在这步，说明中间链路异常，或者报文被过滤）
*Nov 15 16:20:32: %CAPWAP-7-PKT_RECV: Recv [discovery response] from [1.1.1.1 : 5246], seq is [116], length is [137].
*Nov 15 16:20:32: %CAPWAP-7-PKT_RECV: Recv [discovery response] from [1.1.1.1 : 5246], seq is [117], length is [137].
*Nov 15 16:20:32: %CAPWAP-7-PKT_RECV: Recv [discovery response] from [1.1.1.1 : 5246], seq is [118], length is [137].
------AC收到discovery进行回应
*Nov 15 16:20:37: %CAPWAP-6-STATE_CHANGE: Capwap discovery state changed, from <DISC> to <SELECT>
*Nov 15 16:20:37: %CAPWAP-6-STATE_CHANGE: Capwap discovery state changed, from <SELECT> to <SUCCESS>
*Nov 15 16:20:37: %CAPWAP-6-STATE_CHANGE: (peer - 1) [1.1.1.1] capwap state changed, from <Idle> to <Join>
-----AP和AC握手成功
*Nov 15 16:20:37: %CAPWAP-7-PKT_SEND: Send [join request] to [1.1.1.1 : 5246], seq is [1], length is [806].
*Nov 15 16:20:37: %CAPWAP-7-PKT_RECV: Recv [join response] from [1.1.1.1 : 5246], seq [1], length is [39].
*Nov 15 16:20:37: %CAPWAP-5-PEER_NOTIFY_DOWN: Peer <1.1.1.1 : 5246 : 1> DOWN, reason <Join Fail>.
*Nov 15 16:20:37: %CAPWAP-6-STATE_CHANGE: (peer - 1) [1.1.1.1] capwap state changed, from <Join> to <DTLS Teardown>
-----AP请求加组，AC收到并回应，但是直接提示加组不成功（如果出现这种情况有几种可能：1、AP重名；2、AC授权不足；3、中间链路丢包）
AP重名问题日志提示
*Jul 6 11:02:42: %CAPWAP-5-PEER_NOTIFY_DOWN: Peer
<10.247.4.133 : 10000 : 5869.6c42.a5a4> DOWN, reason <Join
Fail>.
*Jul 6 11:02:58: %APMG-5-AP_ADD: Add
AP(5869.6c42.a5a4) fail. Online-AP(5869.6c42.a400) with same name(XL_XXL_1F01)
has exist in this AC.
*Jul 6 11:02:58: %CAPWAP-5-PEER_NOTIFY_DOWN: Peer
<10.247.4.133 : 10000 : 5869.6c42.a5a4> DOWN, reason <DTLS
Shutdown>.
*Jul 6 11:03:13: %APMG-5-AP_ADD: Add
AP(5869.6c42.a5a4) fail. Online-AP(5869.6c42.a400) with same name(XL_XXL_1F01)
has exist in this AC.
*Jul 6 11:03:13: %CAPWAP-5-PEER_NOTIFY_DOWN: Peer
<10.247.4.133 : 10000 : 5869.6c42.a5a4> DOWN, reason <DTLS
Shutdown>.
*Jul 6 11:03:28: %APMG-5-AP_ADD: Add
AP(5869.6c42.a5a4) fail. Online-AP(5869.6c42.a400) with same name(XL_XXL_1F01)
has exist in this AC.
*Jul 6 11:03:29: %CAPWAP-5-PEER_NOTIFY_DOWN: Peer
<10.247.4.133 : 10000 : 5869.6c42.a5a4> DOWN, reason <DTLS
Shutdown>.
*Jul 6 11:03:44: %APMG-5-AP_ADD: Add
AP(5869.6c42.a5a4) fail. Online-AP(5869.6c42.a400) with same name(XL_XXL_1F01)
has exist in this AC.