Re: [mpls] [Tsv-art] Tsvart last call review of draft-ietf-mpls-sr-over-ip-03

Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com> Tue, 12 March 2019 19:42 UTC

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From: Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>
Date: Tue, 12 Mar 2019 14:41:57 -0500
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To: Adrian Farrel <adrian@olddog.co.uk>
Cc: Datatracker on behalf of Martin Stiemerling <ietf-secretariat-reply@ietf.org>, tsv-art@ietf.org, mpls@ietf.org, IETF list <ietf@ietf.org>, draft-ietf-mpls-sr-over-ip.all@ietf.org
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Subject: Re: [mpls] [Tsv-art] Tsvart last call review of draft-ietf-mpls-sr-over-ip-03
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Hi, Adrian,

On Tue, Mar 5, 2019 at 3:35 PM Adrian Farrel <adrian@olddog.co.uk>; wrote:

> Hi Martin,
>
> Good to hear from you.
>
> > I have only one request: From a Transport Area perspective,
> > it would be good to emphasize RFC 7510 and its details about
> > MPLS over UDP.
>
> Happy to accommodate this request.
>
> But what do you have in mind?
>
> There are references to 7510, in the Introduction and in the first two use
> cases in Section 2.
> Then, the packet forwarding procedures in Section 3.2 begin with a
> reference to 7510 as well.
> And there a couple more references in the document.
>
> Thanks,
> Adrian
>

I haven't seen a response back from Martin, and this doc is on the agenda
in a couple of days, so I'll try to read Martin's mind, and you can both
tell me what I'm getting wrong. So can everyone else, of course ...

The character string "7510" does appear in a bunch of places in this draft,
but what I'm not seeing is a statement of whether the congestion control
considerations in Section 5 of RFC 7510 do, or do not, apply to MPLS-SR
over UDP, as with MPLS over UDP. That might be obvious to MPLS-SR types,
and it might be especially obvious to you, because you were author for this
draft and responsible AD for RFC 7510 until after it entered the RFC Editor
queue, but I wonder if it might be useful to Those Less Skilled In The Art.

I'll ballot No Objection/still discussing TSV-ART review with author, and
you can reply here, or there, as seems appropriate.

Make good choices, of course ;-)

Spencer