2013-05-15 22:42:26

by Cyril Segretain

Subject: STA doesn't support ACM for QoS

Hello ,

In my testbed, there is an AP that works with ath9k_htc and hostapd and there
also are 2 STAs that work with ath9k_htc.
Video flows aren't in the good priority, they are in Best_Effort.
But if I enable the ACM parameter for VIDEO and BEST EFFORT, video flows are
now in BACKGROUND priority.
STAs doesn't support the admission control ...

Does someone have a solution ?

I work with Kali Linux, kernel 3.7

Thanks,

Cyril Segretain

2013-05-15 22:53:26

by Ben Greear

Subject: Re: STA doesn't support ACM for QoS

On 05/15/2013 03:42 PM, Cyril Seg wrote:
> Hello ,
>
> In my testbed, there is an AP that works with ath9k_htc and hostapd and there
> also are 2 STAs that work with ath9k_htc.
> Video flows aren't in the good priority, they are in Best_Effort.
> But if I enable the ACM parameter for VIDEO and BEST EFFORT, video flows are
> now in BACKGROUND priority.
> STAs doesn't support the admission control ...
>
> Does someone have a solution ?
>
> I work with Kali Linux, kernel 3.7

See what ToS bits are in your video frames. Some definitions
of ToS had low values for video (32), but wifi requires different
settings (something like 128).

Thanks,
Ben


>
> Thanks,
>
> Cyril Segretain
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
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>


--
Ben Greear <[email protected]>
Candela Technologies Inc http://www.candelatech.com

2013-05-15 23:26:40

by Cyril Segretain

Subject: Re: STA doesn't support ACM for QoS

2013/5/15 Ben Greear <[email protected]>:
> On 05/15/2013 03:42 PM, Cyril Seg wrote:
>>
>> Hello ,
>>
>> In my testbed, there is an AP that works with ath9k_htc and hostapd and
>> there
>> also are 2 STAs that work with ath9k_htc.
>> Video flows aren't in the good priority, they are in Best_Effort.
>> But if I enable the ACM parameter for VIDEO and BEST EFFORT, video flows
>> are
>> now in BACKGROUND priority.
>> STAs doesn't support the admission control ...
>>
>> Does someone have a solution ?
>>
>> I work with Kali Linux, kernel 3.7
>
>
> See what ToS bits are in your video frames. Some definitions
> of ToS had low values for video (32), but wifi requires different
> settings (something like 128).
>

The ToS for Video Streaming should be at 160.
But in my testbed all ToS bits are 0. I don't know why...

> Thanks,
> Ben
>
>
>
>>
>> Thanks,
>>
>> Cyril Segretain
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-wireless"
>> in
>> the body of a message to [email protected]
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>>
>
>
> --
> Ben Greear <[email protected]>
> Candela Technologies Inc http://www.candelatech.com
>