Collect debug logs on Cisco Catalyst 9800 Series Wireless Controller

I am learning C9800 series wireless controller recently. For someone (me) who is familiar with AireOS, everything is new. I sorted out the steps – how to collect debug on C9800.

First, we need to make sure that there is no debug running.

haifeli-C9800#clear platform condition all 

Enable the debug condition, we can also specify the file name, monitor-time, etc.

haifeli-C9800#debug wireless mac 00xx.00xx.00xx
haifeli-C9800#debug wireless mac 00xx.00xx.00xx ?
  ftp-server    Move log file to FTP server, temporary storage: "flash:/"
  internal      Collect all logs.(Default: only customer curated logs)
  monitor-time  Max time to trace the condition, Default: 30min
  to-file       File path in internal storage, default storage: "flash:/"
  <cr>          <cr>

Stop collecting logs.

haifeli-C9800#no debug wireless mac 00xx.00xx.00xx
haifeli-C9800#clear platform condition all

Output the logs to Cli or upload it to the server.

haifeli-C9800#
haifeli-C9800#terminal length 0
haifeli-C9800#more bootflash:ra_trace_MAC_00xx.00xx.00xx_015206605_UTC_Fri_Apr_24_2020.log
haifeli-C9800#terminal length 24
haifeli-C9800#
haifeli-C9800#copy bootflash:ra_trace_MAC_00xx.00xx.00xx_015206605_UTC_Fri_Apr_24_2020.log tftp

We can also collect more detailed logs for analysis.

haifeli-C9800#show logging profile wireless filter mac 00xx.00xx.00xx to-file bootflash:test.log
haifeli-C9800#
haifeli-C9800#terminal length 0
haifeli-C9800#more bootflash:test.log
haifeli-C9800#terminal length 24
haifeli-C9800#
haifeli-C9800#copy bootflash:test.log tftp: