请问是AP2800/AP3800吗?如果的是话,很可能是bug导致的。
Cisco 2802 AP drops client ARP packets
CSCvc67005
Description
Symptom:
client can't pass traffic at all
Conditions:
AP is 2800 or 3800, does not happen on other APs
ARP requests from client are dropped by AP
Client ARP packets are dropped by the AP after successfully serving the client for a period of time
Once the client is not able to pass traffic the only way to recover is fresh auth from the client or roam client to a different AP.
Workaround:
None
Further Problem Description:
https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvc67005/?rfs=iqvred
如果条件匹配,你可以先关闭MU-MIMO试试。或者升级到推荐版本。
Configuring MU-MIMO (GUI)
This feature is supported on all the supporting Cisco Wave 2 APs.
Procedure
Step 1
Choose WLANs and click the WLAN ID.
Step 2
In the Advanced tab, check or uncheck the 11ac MU-MIMO check box.
Step 3
首先感谢老哥的帮助,但是试过之后这个问题还是存在,如果是2800系列的bug的话我去试试换成16的行不行
如果有其他的ap的话 当然可以试试,这样就能确认是不是cos ap的问题了。