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Re: [PATCH] mac80211: use beacons for connection monitoring

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On Wed, 2009-07-29 at 14:50 -0700, reinette chatre wrote:
> On Wed, 2009-07-29 at 14:45 -0700, Johannes Berg wrote:
> > On Wed, 2009-07-29 at 14:32 -0700, Reinette Chatre wrote:
> > > From: Reinette Chatre <reinette.chatre@xxxxxxxxx>
> > > 
> > > The connection monitor currently relies on probe requests paired
> > > with probe responses to ensure that a connection is alive. This is
> > > fragile in some environments where probe responses can get lost.
> > > When we receive beacons we can also consider the connection to be
> > > alive, so cancel connection poll instance when we receive a beacon.
> > > 
> > > The debug message "cancelling probereq poll due to a received beacon"
> > > is removed as part of this change as this case is hit very often after
> > > the above change and debug log receives significant number of these messages.
> > 
> > Not doing that was actually intentional -- we want to know whether or
> > not the connection is working both ways, not just whether we can receive
> > frames. This can certainly be improved, but I'm not sure this is the
> > best approach.
> 
> I'd be happy to try out other approaches because my connection is
> dropping every few minutes. 


Mine too, and it even happens when I am a meter away from the AP.
My device is 3945.

Best regards,
	Maxim Levitsky


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