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Re: [External] Re: New Liaison Statement, "LS on ATSSS Phase 2 conclusions"

Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com> Thu, 03 December 2020 21:31 UTC

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From: Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>
Date: Thu, 03 Dec 2020 15:31:23 -0600
Message-ID: <CAKKJt-cgQtset-K7KGeG5bdWnqjN1Gar1hexv1RX9Hd5U4bJ2Q@mail.gmail.com>
Subject: Re: [External] Re: New Liaison Statement, "LS on ATSSS Phase 2 conclusions"
To: Apostolis Salkintzis <salki@motorola.com>
Cc: Jana Iyengar <jri.ietf@gmail.com>, "Markus.Amend@telekom.de" <Markus.Amend@telekom.de>, Magnus Westerlund <magnus.westerlund@ericsson.com>, "wzia@qti.qualcomm.com" <wzia@qti.qualcomm.com>, "lionel.morand@orange.com" <lionel.morand@orange.com>, "statements@ietf.org" <statements@ietf.org>, "gonzalo.camarillo@ericsson.com" <gonzalo.camarillo@ericsson.com>, "3GPPLiaison@etsi.org" <3GPPLiaison@etsi.org>, "chair@ietf.org" <chair@ietf.org>, Lucas Pardue <lucaspardue.24.7@gmail.com>, Marten Seemann <martenseemann@gmail.com>, Lars Eggert <lars@eggert.org>, QUIC WG <quic@ietf.org>, Martin Duke <martin.h.duke@gmail.com>, Kazuho Oku <kazuhooku@gmail.com>
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(And, just to add to what Apostolis said)

On Thu, Dec 3, 2020 at 12:15 PM Apostolis Salkintzis <salki@motorola.com>
wrote:

> Hi Jana,
>
>
>
> BTW, MPTCP between the UE and UPF is already supported in 3GPP Rel-16
> specs for TCP traffic.
>

One of the goals for post-Rel-16 ATSSS is to support non-TCP traffic.

3GPP ATSSS-LL already supports non-TCP traffic, but it's roughly placed on
whatever outgoing queue to the UPF seems right, delivered in whatever order
the packets arrive at the UPF, etc.

And so, 3GPP hopes to do better than ATSSS-LL, and here we are.

As I understand it. But I'm still not the ATSSS Whisperer[1].

Best,

Spencer

[1] The reference is to a Horse Whisperer -
http://www.careerwithanimals.co.uk/what-does-horse-whisperer-do.html

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