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Re: [tsvwg] Doubts regarding motivation of draft-ietf-tsvwg-iana-dscp-registry-04

Alexander Vainshtein <Alexander.Vainshtein@ecitele.com> Tue, 08 May 2018 09:26 UTC

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From: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
To: Mikael Abrahamsson <swmike@swm.pp.se>
CC: "gorry@erg.abdn.ac.uk" <gorry@erg.abdn.ac.uk>, "tsvwg@ietf.org" <tsvwg@ietf.org>
Thread-Topic: [tsvwg] Doubts regarding motivation of draft-ietf-tsvwg-iana-dscp-registry-04
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Date: Tue, 08 May 2018 09:26:27 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/tsvwg/wStf_w-uMr1J8VivsIo8y1QrYBc>
Subject: Re: [tsvwg] Doubts regarding motivation of draft-ietf-tsvwg-iana-dscp-registry-04
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Mikael,
Lots of thanks for a prompt response. 

Your objective makes sense to me, but it does not appear in the draft in any form.



Regards,
Sasha

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Email:   Alexander.Vainshtein@ecitele.com


-----Original Message-----
From: Mikael Abrahamsson [mailto:swmike@swm.pp.se] 
Sent: Tuesday, May 8, 2018 12:14 PM
To: Alexander Vainshtein <Alexander.Vainshtein@ecitele.com>
Cc: gorry@erg.abdn.ac.uk; tsvwg@ietf.org
Subject: Re: [tsvwg] Doubts regarding motivation of draft-ietf-tsvwg-iana-dscp-registry-04

On Tue, 8 May 2018, Alexander Vainshtein wrote:

> Godred and all,
> I have looked up the draft<https://tools.ietf.org/html/draft-ietf-tsvwg-iana-dscp-registry-04>, and I have doubts regarding validity of its motivation.
> The draft says - correctly -that 22 out of 32 values in Pool 1 of the DSCP code points have been already assigned, therefore it considers this pool as nearly exhausted.
>
> What the draft does not say that, out of these 22 assignments, 2o have been done in 1998 and one - in 1999. Only one assignment has been requested in the past 19 years, and no assignments have been requested after 2010.
>
> At this rate my estimate is that Pool 1 would suffice for the next 50+ years without its exhaustion becoming an issue. So why should the IETF do anything now?

The primary reason for this is not because pool 1 is becoming exhausted, but the fact that we want to use 000001 for LE (for practical/legacy reasons, not because pool 1 is becoming exhausted), so the suggestion is therefore to make Pool 3 have a different allocation policy so we can put in a standards track PHB LE RFC for 000001.

-- 
Mikael Abrahamsson    email: swmike@swm.pp.se

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