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Re: Re: [PATCH 2/2] mac80211: Always send EAPOL frames at lowest rate

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Am Samstag, 30. Juli 2011, 22:03:34 schrieb Andreas Hartmann:
> Jouni Malinen schrieb:
> > On Fri, Jul 29, 2011 at 07:22:17PM +0200, Helmut Schaa wrote:
> >> Since EAPOL frames are normal data frames they are treated by the
> >> rate control algorithm as such. Thus it can happen that the rate
> >> control algorithm chooses an inappropriate rate (minstrel_ht uses
> >> MCS rates for example) for the 4-way handshake and under low signal
> >> conditions the handshake may time out.
> >> 
> >> To fix this issue always treat EAPOL frames the same as management 
> >> frames and send them with the lowest available rate.
> > 
> > I don't think that this should be applied for the reasons given (and 
> > alternative mechanisms proposed) in the discussion.
> 
> I tested it with AP (rt2860) (with STA rt3572sta) under load and
> couldn't see any improvement.

Because the patch never intended to tackle the problem you've reported :)

However, I've got some reports of clients timing out during the 4-way
handshake if they are "far" away from the AP while auth and assoc work
just fine.

Helmut
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