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Re: wireless powersaving (in NM?)

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On Thu, Mar 26, 2009 at 1:11 AM, Johannes Berg
<johannes@xxxxxxxxxxxxxxxx> wrote:
> On Thu, 2009-03-26 at 01:00 -0700, Luis R. Rodriguez wrote:
>
>> > Right. If a particular chipset doesn't properly supported PS then we
>> > shouldn't actually support it at all -- but we cannot know if the AP is
>> > broken.
>>
>> How about leaving it to the supplicant to guess if the AP is borked or not.
>>
>> Kalle, what would happen with these broken APs?
>
> We talked about that briefly yesterday -- it's not very easy to
> determine this because of the various ways things break:
>
>  * one AP sets the broadcast/multicast bit one beacon too late (after
>   having already sent the frames)
>  * one AP doesn't buffer frames at all
>  * one AP doesn't respond to PS-poll frames

It sounds like all 3 things can be tested for.

  Luis
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