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

"Muthu Arul Mozhi Perumal (mperumal)" <mperumal@cisco.com> Wed, 19 February 2014 04:19 UTC

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From: "Muthu Arul Mozhi Perumal (mperumal)" <mperumal@cisco.com>
To: Oleg Moskalenko <mom040267@gmail.com>, Simon Perreault <simon.perreault@viagenie.ca>
Thread-Topic: [tram] Fwd: I-D Action: draft-thomson-tram-turn-bandwidth-00.txt
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Date: Wed, 19 Feb 2014 04:19:35 +0000
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Subject: Re: [tram] Fwd: I-D Action: draft-thomson-tram-turn-bandwidth-00.txt
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draft-ietf-rtcweb-qos defines the recommended DSCP values for browsers to use for various classes of traffic. If the TURN server can use that, great. If on the other hand, the OS doesn't allow the browser to set it or the value gets reset, defining a STUN attribute on the same lines makes sense. I just realized draft-martinsen-tram-discuss (DISCUSS) already does that. The difference being it doesn't limit those attributes to TURN messages alone, but can certainly be carried in a TURN Allocate request and used by the TURN server.

Muthu

From: tram [mailto:tram-bounces@ietf.org] On Behalf Of Oleg Moskalenko
Sent: Wednesday, February 19, 2014 3:17 AM
To: Simon Perreault
Cc: tram@ietf.org
Subject: Re: [tram] Fwd: I-D Action: draft-thomson-tram-turn-bandwidth-00.txt



On Tue, Feb 18, 2014 at 1:33 PM, Simon Perreault <simon.perreault@viagenie.ca<mailto:simon.perreault@viagenie.ca>> wrote:
Le 2014-02-18 16:12, Oleg Moskalenko a écrit :


Anyway, I was expecting responses along the lines of "DiffServ doesn't
work on the Internet in general." 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?


That would make sense - as s solution that does not require the TURN server to be too smart but that allows some "easy" traffic engineering.

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