On Monday, October 24, 2016 3:33:24 PM CEST Johannes Berg wrote:
> > > I think it would be reasonable only if the target channel is the
> > > one we are using and we have done CSA. But when scanning non-
> > > operative channels I don't think this could work.
> >
> > this has been sleeping for a while.. :)
> > Would it make sense to rebase it and resubmit it for inclusion?
> >
> > Given the previous discussion we could change the logic as:
> > * always passively scan DFS channels that are not usable
> > * always actively scan DFS channels that are usable (i.e. CAC was
> > performed).
>
> Doesn't that contradict what you said above?
>
> If we scan, don't we possibly lose our CAC result anyway, since we went
> off-channel? In FCC at least? In ETSI I think we're allowed to do that
> for a bit?
I believe going off-channel was allowed in general - in fact, some routers CAC
all channels on boot up and then keep the "usable" state forever.
Otherwise, it would be pretty much impossible to perform CSAs to another DFS
channel.
Cheers,
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