You will get this message if the AP's channel utilization reaches 45%. The AP sends this info via QBSS, which the 7920 uses for roaming as well. Traffic can increase this value as well as radio interference. If traffic is causing this, you may need to install additional APs for load-balancing.
If the QBSS values in site survey are above 105, then will get network busy. This means the channel is very utilized. This is for outbound CAC. If no 802.11 traffic and is >= 25 or so, then need to take a look to see what other non-802.11 devices are in the area.
Transferring Crash file from standby: Login to the Active WLC in HA.
From CLI: (Cisco Controller) >transfer upload datatype crash (Cisco
Controller) >transfer upload filename (Cisco
Controller) >transfer upload mode tftp (Cisco Controller) >transfer
This is the start of a display filter cross reference between Wireshark
and OmniPeek. The 1st installment is a table of advanced filters. More
filters will be added as time allows. It is a living doc, so check back
for changes every so often Please feel f...
I have created a Powershell script to automatically add a Wireless Guest
User on Cisco WLCs. (tested on 2500 Series) The script should be
completely self explanatory. Prerequisites: Powershell SNMP Module
(Install-Module -Name SNMP) SNMP Write Access to y...