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Re: Differentiate between GQUIC and QUIC packets

Dmitri Tikhonov <dtikhonov@litespeedtech.com> Tue, 01 August 2017 18:33 UTC

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Date: Tue, 01 Aug 2017 14:33:21 -0400
From: Dmitri Tikhonov <dtikhonov@litespeedtech.com>
To: Ian Swett <ianswett@google.com>
Cc: IETF QUIC WG <quic@ietf.org>
Subject: Re: Differentiate between GQUIC and QUIC packets
Message-ID: <20170801183320.GB3099@ubuntu-dmitri>
References: <20170801032502.GA28788@ubuntu-dmitri> <20170801032805.GA29894@ubuntu-dmitri> <CAKcm_gNQFEmws7wX5vfKCZ4QHGTHRq=Y4GxO09GxjW66dRPRig@mail.gmail.com> <20170801125031.GA2742@ubuntu-dmitri> <CAKcm_gOK5K=jcVG3V4moTpV0-KeLAWMjtvAqX5aZt6voo4kBng@mail.gmail.com>
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On Tue, Aug 01, 2017 at 09:08:52AM -0400, Ian Swett wrote:
> On Tue, Aug 1, 2017 at 8:50 AM, Dmitri Tikhonov <dtikhonov@litespeedtech.com
> > Speaking of clients: is it the plan for Chrome to support both GQUIC
> > and IETF QUIC during the transition period?
>
> Chrome is in the process of migrating towards IETF QUIC, but there is a
> plan to support at least two versions during the transition.

Recent Chrome releases have not supported older versions:

- Chrome 60 dropped support for Q035 in favor of Q037.

- Chrome dev build 61.0.3163.25 only supports Q039: it does not use
  QUIC to connect to web sites that advertize Q035 or Q037.

Looking at the Chrome code, it does not seem that there is a reason
for it not to work with multiple versions: proto-quic server supports
multiple versions at the same time.

  - Dmitri.

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