现场同一个POE交换机下的部分AP在使用过程中掉线,然后无法上线,查看对应的掉线原因是Failed to retransmit message或者是邻居超时,在AC上进行debugging wlan capwap all name AP3, debugging wlan capwap all mac-address, debugging wlan capwap all serial-id 没有任何回显。
本地转发,AC上pingAP没有丢包,POE交换机与AP互联的接口没有错包。
查看隧道的状态
[WX5540H-probe]dis system internal wlan ap all capwap packet-statistics | begin 6ce5-f79a-bb90
Mac-address : 6ce5-f79a-bb90
Illegal Packet : 0
Discover Request/Response : 23/23
Join Request/Response : 30/9
Configuration Request/Response : 8/8
Configuration Update Request/Response : 43937/43935
WTP Event Request/Response : 4982484/4982484
Change State Event Request/Response : 8/8
Echo Request/Response : 1049012/1049012
Image Data Request/Response : 22781/22781
Reset Request/Response : 0/0
Primary Discovery Request/Response : 0/0
Data Transfer Request/Response : 0/0
Clear Config Indication/Response : 0/0
Mobile Configuration Request/Response : 38294/38294
Data Channel Keep Alive Request/Response: 1049020/1049020
Wlan Configuration Request/Response : 26/26
console连接AP发现无法登录AP,怀疑现场有多台AC在同时管理AP,查询组网发现组网中有两台AC且没有做双链路备份和IRF,登陆到另外一台AC上查看,发现AP已经注册到AC上,因此导致AP的在第一台AC上无法上线
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