Hi all, I have noticed some behavior on my LEDE powered Linksys router regarding the response to DFS 'radar detected' events when a DFS channel has been manually selected for a 5GHz radio (i.e. non-ACS). hostap is correctly responding and immediately switching to a different channel. However it then stays on this alternate channel indefinitely. This causes issues when the alternate channel selected by hostapd is a congested 5Ghz channel, resulting in poorer performance for clients. >From my understanding of the IEEE guidelines for DFS, the channel change is only supposed to be temporary and after the DFS NOP (non-occupancy) period has expired, which is typically 30 minutes, the radio is permitted to switch back to the originally configured channel if no further radar is detected for 60 seconds. Seemingly right now the only way to 'fix' this channel change back to the original channel is to manually restart hostapd with the original settings again. Could a feature be added to allow hostap to automatically switch back to the configured channel after the NOP period has expired? The trade-off here is that this action requires another 60 second DFS scan, resulting in radio down-time, so this ideally would be selectable in the config. Thanks, Seb _______________________________________________ Hostap mailing list Hostap@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/hostap
