I have 2 access points which are far apart from each other. I have 802.1x+cckm enabled for my cisco Wireless ip phone. When I move from one AP closer to the other. The phone call disconnects. I was running a debug on the controller while roaming and this is the error message I saw:
%APF-3-CREATE_CCKM_REASS_RESPONSE_IE_FAILED: Could not build the CCKM
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
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