The controller tells the APs when they should change channel and how. The 802.11x standards define how APs and client devices determine the channel in use. It's all dynamic, so there's normally nothing to worry about. HOWEVER, in certain circumstances, it's better not to let the controller do certain auto RF functions. It depends what issue you're seeing or what you're doing.
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...