Hi Airheads,
Looking to understand why this may be happening and how I can debug further...
I'm moving an AP from one VMC cluster to another by re-provisioning the AP. When the AP discovers the image mismatch with the new VMC, it attempts to download the new image using FTP.
Looking at the datapath session table, the FTP connection is never stood up, and it falls back to TFTP and eventually the image upgrade succeeds.
Source IP or MAC Destination IP Prot SPort DPort Cntr Prio ToS Age Destination TAge Packets Bytes Flags CPU ID
----------------- --------------- ---- ----- ----- -------- ---- --- --- ----------- ---- ---------- ---------- --------------- -------
<VMC IP> <AP IP> 17 69 58302 0/0 0 0 1 0/0/0 11 0 0 FY 3
<AP IP> <VMC IP> 17 58302 1038 1/4098 0 6 0 local 11 3425 109600 FI 3
<AP IP> <VMC IP> 6 57991 21 1/4098 0 0 1 0/0/0 11 0 0 YCUI 3
<VMC IP> <AP IP> 6 21 57991 0/0 0 0 1 0/0/0 11 1 40 FI 3
<VMC IP> <AP IP> 17 1038 58302 0/0 0 6 0 local 12 3570 1942080 FC 3
<AP IP> <VMC IP> 17 58302 69 1/4098 0 6 1 0/0/0 12 1 46 FHCI 3
A controlpath PCAP from the VMC shows that it is sending TCP RST for the connection from the AP on port 21:
I've verified that the FTP server is still enabled with 'show firewall'.
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Chris Denham
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