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Re: [homenet] DSCP

Mark Townsley <mark@townsley.net> Fri, 07 February 2014 21:51 UTC

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From: Mark Townsley <mark@townsley.net>
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Date: Fri, 07 Feb 2014 22:51:14 +0100
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To: Brian E Carpenter <brian.e.carpenter@gmail.com>
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Cc: "homenet@ietf.org" <homenet@ietf.org>, Lorenzo Colitti <lorenzo@google.com>, Mikael Abrahamsson <swmike@swm.pp.se>
Subject: Re: [homenet] DSCP
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On Feb 7, 2014, at 8:48 PM, Brian E Carpenter wrote:

> On 08/02/2014 00:20, Mikael Abrahamsson wrote:
>> On Fri, 7 Feb 2014, Lorenzo Colitti wrote:
>> 
>>>> Absolutely, but it means resetting DSCP, thus breaking QoS in other
>>>> parts
>>>> of the packet path.
>>> 
>>> Well to be more precise, it means making sure DSCP is a value that the
>>> customer is allowed to use (or rewriting it). Just like you have to make
>>> sure that the packet's source address is a value that the customer is
>>> allowed to use (or dropping the packet). No?
>> 
>> Correct.
> 
> Yes. There's nothing we've discussed in this thread that is different
> from the diffserv architecture (RFC 2475). Diffserv works within
> a single administrative domain (possibly split up using tunnels).
> There are some efforts towards inter-provider diffserv in TSVWG
> (RFC 4594, RFC 5127, draft-geib-tsvwg-diffserv-intercon).

Great, happy to see everyone finally at some level of violent agreement then!

- Mark

> 
>   Brian
> 
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