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Re: [Dart] Diffserv survival...

"Black, David" <david.black@emc.com> Tue, 24 June 2014 23:57 UTC

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From: "Black, David" <david.black@emc.com>
To: Brian E Carpenter <brian.e.carpenter@gmail.com>, "dart@ietf.org" <dart@ietf.org>
Date: Tue, 24 Jun 2014 19:56:41 -0400
Thread-Topic: [Dart] Diffserv survival...
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Archived-At: http://mailarchive.ietf.org/arch/msg/dart/YFoEekUl_LRp0FWTTyDahm-G_v8
Subject: Re: [Dart] Diffserv survival...
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+1 as an individual (not tsvwg WG chair) - next version of draft-york
is expected to have stronger text on this point (most DSCPs won't make it
through many carrier networks).

--David

> -----Original Message-----
> From: Dart [mailto:dart-bounces@ietf.org] On Behalf Of Brian E Carpenter
> Sent: Monday, June 23, 2014 11:58 PM
> To: dart@ietf.org
> Subject: [Dart] Diffserv survival...
> 
> This is really a comment on draft-ietf-tsvwg-rtcweb-qos,
> but I think the discussion should perhaps start here.
> 
> draft-ietf-tsvwg-rtcweb-qos is aligned with a subset of
> RFC 4594, which is entirely reasonable since the update of that
> RFC seems to be on hold.
> 
> However, in terms of what DSCPs have a good chance of actually
> crossing ISP boundaries in one piece, I think we should also
> look at draft-geib-tsvwg-diffserv-intercon. The main issue
> is that draft-geib suggests a quite small set of DSCPs that
> would hypothetically cross boundaries. Personally I think
> that is realistic and might even happen, whereas the set
> proposed in rtcweb-qos looks implausibly large to me, and
> very unlikely ever to be supported in peering relationships.
> 
>     Brian
> 
> 
> 
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