Re: New Version Notification for draft-bonaventure-quic-atsss-overview-00.txt

Christian Huitema <huitema@huitema.net> Wed, 03 June 2020 07:11 UTC

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Subject: Re: New Version Notification for draft-bonaventure-quic-atsss-overview-00.txt
To: Olivier.Bonaventure@uclouvain.be, Matt Joras <matt.joras@gmail.com>, Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>
Cc: IETF QUIC WG <quic@ietf.org>
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From: Christian Huitema <huitema@huitema.net>
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Date: Tue, 2 Jun 2020 23:40:00 -0700
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On 6/2/2020 11:31 PM, Olivier Bonaventure wrote:
> Solving these problems in the network allows to support existing and
> unmodifed applications, which is a key requirement from a deployment
> viewpoint. A longer term approach could be to expose more information
> from the underlying network to the upper layer so that new
> applications can make informed and possibly better choices. 

I really wonder whether that argument applies to QUIC in 2020. Existing
and unmodified applications use TCP today, not QUIC.

QUIC capable applications have path migration capabilities built-in from
the start, which covers most of the "reliability" use cases of
multipath, without insert yet another middle-box in the setup.

-- Christian Huitema