WLC:3504 AP： AP1542i-H-K9近期遇到一个问题，就是客户现场有终端只支持5G的36-48频段，AP1542I-H版只支持149，153，157，161，165。有什么方法能支持36-46信道（2.4G现场干扰太大，使用效果不好）。以下是H版和AB版支持的信道。H版和AB版能互刷吗？？或者其他方法也行。

    Our company runs two 4503 as core switches and configured HSRP. One day the main core switch suddenly restarted.Please help analyze.show version content：   Cisco IOS Software, Catalyst 4500 L3 Switch Software (cat4500e-IPBASE-M), Version 15.1(2)S...

wlc 3504 8.5  ap:2802i,Client ARP packets are dropped by the AP after successfully serving the client for a period of time.Why is this happening.

Please help analyze this problem，I have two 2110, failover, the crashinfo below is the main firewall, the backup also has Crash information.

I'm having two Nexus 93108tc in Layer2 switch. two Nexus 93108 connect to 4503 by vPC,Today I have a problem where a 40Gbps(change to 1Gbps) port (1/36) is falling out of nowhere. It gets down and only returns when we remove the gbic cisco and put it...