Tools you could use for a site survey are Cisco spectrum expert and also Air magnet, but they are not free.
Basically when working with wireless setup we need to do a site survey to determine the amount of access points you need to get to cover the required area, where to locate each AP and power levels to use so that the overlapping of each cell is not more than 15% to avoid roaming issue for the wireless clients, the required data rate needed per client since wireless is half duplex and a shared medium and finally when working on the 2.4GHZ distribute the 3 non overlapping channels (1-6-11)so that the access points do not create interference between them.
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...