When ExtremeCloud IQ or ExtremeCloud IQ Controller report the spectrum information to an AP, it indicates an expiration time. Expiration time is 24 hours ahead of the last spectrum refresh, as shown on the AFC tab for each AP.
If the spectrum is not refreshed within 24 hours, the AP enters into a grace period. The grace period extends until midnight the next day in the local timezone.
Note the following behavior:
ExtremeCloud IQ Controller - If a new AFC spectrum is not obtained within the grace period, then the AP 6GHz radios revert to Low Power Indoors (LPI) power mode, if LPI is supported. Otherwise, the 6GHz radios stop operating.
ExtremeCloud IQ - If a new AFC spectrum is not obtained within the grace period, then the AP 6GHz radios stop operating. In a future release, this behavior will be revised to correspond to ExtremeCloud IQ.
See Supported APs for AFC in Canada and the United States for a list of APs that support LPI.