netdev - Re: Network QoS support in applications

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Message-ID: <878wbkm3s0.fsf@purkki.valot.fi>
Date:	Wed, 27 Jan 2010 08:59:43 +0200
From:	Kalle Valo <kalle.valo@....fi>
To:	Henning Rogge <henning.rogge@...e.fraunhofer.de>
Cc:	David Miller <davem@...emloft.net>, kaber@...sh.net,
	netdev@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Re: Network QoS support in applications

Henning Rogge <henning.rogge@...e.fraunhofer.de> writes:

> On Tue January 26 2010 13:56:50 Kalle Valo wrote:
>> So the idea is that the three left most bits (Class Selector
>> Codepoints from DiffServ RFC 2474) would contain these values from
>> IEEE 802.1d-2004 Annex G:
>> 
>> 0 best effort
>> 1 background
>> 2 (spare)
>> 3 excellent effort
>> 4 controlled load
>> 5 video
>> 6 voice
>> 7 network control
>> 
>> What do people think of this?
>
> The IETF is discussing about a traffic priority below "best effort"
> for bulk traffic at the moment. Something you use to fill up links
> if your can but drop it if you are not sure. So it might be a good
> idea to make "best efford" not zero.

I think 802.1d used zero for best effort to get it as the default. If
no class is set, the field will be zero and best effort is used.

-- 
Kalle Valo
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