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What are the events which can show "ah_spectral_scan_vdetach" debug log.

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TitleWhat are the events which can show "ah_spectral_scan_vdetach" debug log.
Question
What are the events which can show "ah_spectral_scan_vdetach" debug log.
2020-07-14 11:08:05 debug   kernel: ah_spectral_scan_vdetach: Setting spectral scan vap to NULL
2020-07-14 11:08:05 debug   kernel: ah_spectral_scan_vdetach: vap wifi1.2 DOWN, spectral scan module re-attached to vap cf310000, name=wifi1.3
2020-07-14 11:08:05 debug   kernel: ah_spectral_scan_vdetach: vap wifi1.1 DOWN, spectral scan module re-attached to vap ceee0000, name=wifi1.2
2020-07-14 11:08:05 debug   kernel: ah_spectral_scan_vdetach: vap wifi0.1 DOWN, spectral scan module re-attached to vap cf290000, name=wifi0.2
2020-07-14 11:08:05 debug   kernel: ah_spectral_scan_vdetach: vap wifi1.2 DOWN, spectral scan module re-attached to vap cdbf0000, name=wifi1.1
2020-07-14 11:08:05 debug   kernel: ah_spectral_scan_vdetach: vap wifi1.1 DOWN, spectral scan module re-attached to vap ceee0000, name=wifi1.2
2020-07-14 11:08:05 debug   kernel: ah_spectral_scan_vdetach: vap wifi0.2 DOWN, spectral scan module re-attached to vap cda90000, name=wifi0.1
2020-07-14 11:08:05 debug   kernel: ah_spectral_scan_vdetach: vap wifi0.1 DOWN, spectral scan module re-attached to vap cf290000, name=wifi0.2
2020-07-14 11:08:02 debug   kernel: ah_spectral_scan_vattach: spectral scan module attached to vap (cda90000,wifi0.1)
2020-07-14 11:08:02 debug   kernel: ah_spectral_scan_vdetach: Setting spectral scan vap to NULL
2020-07-14 11:08:02 debug   kernel: ah_spectral_scan_vdetach: vap wifi0.2 DOWN, spectral scan module re-attached to vap cf302000, name=wifi0.3
2020-07-14 11:08:02 debug   kernel: ah_spectral_scan_vdetach: vap wifi0.1 DOWN, spectral scan module re-attached to vap cf290000, name=wifi0.2
2020-07-14 11:08:02 debug   kernel: ah_spectral_scan_vattach: spectral scan module attached to vap (cdbf0000,wifi1.1)

 
Environment
ExtremeCloud IQ engine
Answer
  • Full ACSP scan is running to pick a channel before the channel change.
  • During boot up time (within 5 minutes after the boot up).
  • Interference exceeding the threshold could also trigger similar ACSP scan.
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