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Re: [tram] Fwd: I-D Action: draft-thomson-tram-turn-bandwidth-00.txt

"Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com> Wed, 19 February 2014 15:45 UTC

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From: "Tirumaleswar Reddy (tireddy)" <tireddy@cisco.com>
To: Simon Perreault <simon.perreault@viagenie.ca>, "tram@ietf.org" <tram@ietf.org>
Thread-Topic: [tram] Fwd: I-D Action: draft-thomson-tram-turn-bandwidth-00.txt
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Date: Wed, 19 Feb 2014 15:45:04 +0000
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Subject: Re: [tram] Fwd: I-D Action: draft-thomson-tram-turn-bandwidth-00.txt
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> -----Original Message-----
> From: tram [mailto:tram-bounces@ietf.org] On Behalf Of Simon Perreault
> Sent: Wednesday, February 19, 2014 3:03 AM
> To: tram@ietf.org
> Subject: Re: [tram] Fwd: I-D Action: draft-thomson-tram-turn-bandwidth-00.txt
> 
> Le 2014-02-18 16:12, Oleg Moskalenko a écrit :
> > How to handle the DS and ECN fields is a part of TURN server RFC (see
> > the section 12):
> >
> > http://tools.ietf.org/search/rfc5766#section-12
> >
> > And a good TURN server is supposed to implement that.
> 
> Well, the RFC just says that the TURN server should copy the DSCP from one side
> to the other when doing en/de-capsulation. It doesn't say that the server should
> actually do QoS based on the DSCP. My point is that there's nothing preventing
> the server from actually doing it.
> 
> Anyway, I was expecting responses along the lines of "DiffServ doesn't work on
> the Internet in general." 

Yes, the other problem is some OS like Windows (http://support.microsoft.com/kb/248611) do not support setting DSCP.

-Tiru

> To which I would have replied: "then couldn't we define
> a STUN attribute for transporting the DSCP in the payload?" Instead of inventing
> a new taxonomy (audio, video, slides, etc.), why not reuse DSCP?
> 
> Simon
> --
> DTN made easy, lean, and smart --> http://postellation.viagenie.ca
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> 
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