On Mon, Dec 20, 2021 at 04:48:23PM +0100, Lorenzo Bianconi wrote: > On radar detection on the main chain switch to the channel monitored > by the background chain if we have already performed the CAC there. Is it clear that the channel on the background chain, if one is available with CAC performed, comply with the ETSI uniform spreading requirements? The comment below feels a bit misleading, but the way patch 5/9 picks the channel for background CAC might be sufficient for this. If so, it would be good to note that in the comment here: > diff --git a/src/ap/dfs.c b/src/ap/dfs.c > +hostapd_dfs_background_start_channel_switch(struct hostapd_iface *iface, > + /* > + * If background radar detection is supported and radar channel > + * monitored by background chain is available switch to it without > + * waiting for the CAC otherwise let's keep a random channel. That first part leaves it a bit open whether the random channel part from the end of the sentence applies in practice for the new operating channel. It is important to make this clearly describe the functionality needed to meet uniform spreading requirement. -- Jouni Malinen PGP id EFC895FA
