Re: Preparing for discussion on what to do about the multipath extension milestone

Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com> Fri, 02 October 2020 18:55 UTC

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From: Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>
Date: Fri, 02 Oct 2020 13:54:32 -0500
Message-ID: <CAKKJt-ecK6pkmay78V2vmTPs0BRqQipsXcDuO48m3kDRBQ_BDg@mail.gmail.com>
Subject: Re: Preparing for discussion on what to do about the multipath extension milestone
To: Lucas Pardue <lucaspardue.24.7@gmail.com>
Cc: Matt Joras <matt.joras@gmail.com>, Christoph Paasch <cpaasch@apple.com>, QUIC WG <quic@ietf.org>, Olivier Bonaventure <Olivier.Bonaventure@uclouvain.be>, Ian Swett <ianswett=40google.com@dmarc.ietf.org>
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Hi, Lucas,

On Fri, Oct 2, 2020 at 12:51 PM Lucas Pardue <lucaspardue.24.7@gmail.com>
wrote:

> +1 to the suggestion to discuss use cases, it is helpful for clarity. And
> thanks Christoph for sharing some specific ones.
>
> For the use cases "Siri" and "Apple Music", since I'm not experienced with
> multipath there's a gap in my understanding of how the proposal in
> draft-deconinck-quic-multipath would be used to satisfy these use cases.
> For instance, is the behaviour client-driven, server-driven or does it
> require coordination? Would anyone be so kind as to share _an example_ of
> how uniflows would be used within a QUIC connection that uses a
> request/response paradigm for data exchange.
>
> > Another question, and perhaps this is getting increasingly off-topic,
> but now that we are getting into designing "significant" extensions, I
> think it is worth asking whether this should be an extension at all. I.e.
> should MPQUIC be a core feature of QUICv2?
>
> I tried to spin that out into another thread [1]. IIRC someone previously
> suggested that MP-QUIC could start as an experimental version of it's own.
> I can't find a citation for that though sorry.
>

At a minimum, Martin and I have both been talking about experiments,
experimental drafts, and perhaps even experimental versions, but I think
the clearest citations is Martin's, at
https://mailarchive.ietf.org/arch/msg/quic/FH8JDTD5noAbnsSjr7s4sVuiI5o/.

He also noted that Magnus is the responsible AD for QUIC in his note.

Best,

Spencer


> [1]
> https://mailarchive.ietf.org/arch/msg/quic/p2II8y3y1FXy4kWMSuf1lgAXaFA/
>