Re: [Gen-art] Gen-ART Last Call review of draft-ietf-avtcore-cc-feedback-message-08

Colin Perkins <csp@csperkins.org> Thu, 17 September 2020 22:43 UTC

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From: Colin Perkins <csp@csperkins.org>
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Date: Thu, 17 Sep 2020 23:43:10 +0100
Cc: draft-ietf-avtcore-cc-feedback-message.all@ietf.org, General Area Review Team <gen-art@ietf.org>
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To: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Subject: Re: [Gen-art] Gen-ART Last Call review of draft-ietf-avtcore-cc-feedback-message-08
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> On 7 Sep 2020, at 16:46, Paul Kyzivat <pkyzivat@alum.mit.edu> wrote:
> 
> I am the assigned Gen-ART reviewer for this draft. The General Area
> Review Team (Gen-ART) reviews all IETF documents being processed
> by the IESG for the IETF Chair.  Please treat these comments just
> like any other last call comments.
> 
> For more information, please see the FAQ at
> 
> <https://trac.ietf.org/trac/gen/wiki/GenArtfaq>.
> 
> Document: draft-ietf-avtcore-cc-feedback-message-08
> Reviewer: Paul Kyzivat
> Review Date: 2020-09-16
> IETF LC End Date: 2020-09-16
> IESG Telechat date: ?
> 
> This draft is basically ready for publication, but has nits that should be fixed before publication.
> 
> I noticed one nit (typo) in section 7:
> 
>   s/ecn-capaable-rtp/ecn-capable-rtp/

Will fix.

> Beyond that I have one question/suggestion that I'm happy to have you consider or ignore as you see fit:
> 
> In the case of missing packets it seems that you have the opportunity to save some space by encoding a run of contiguous missing packets as a single packet metric block with L=0, using the remaining bits in the metric block to encode the number of missing packets. Whether that is an optimization worth the trouble to do is a question I can't answer.


It’s certainly possible to do that, and the WG did discuss optimisations and more complex formats. At present, I think simple and published outweigh optimised.

Cheers,
Colin



-- 
Colin Perkins
https://csperkins.org/