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Re: New Version Notification for draft-dawkins-quic-multipath-questions-00.txt

Lars Eggert <lars@eggert.org> Mon, 07 December 2020 08:41 UTC

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From: Lars Eggert <lars@eggert.org>
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Subject: Re: New Version Notification for draft-dawkins-quic-multipath-questions-00.txt
Date: Mon, 07 Dec 2020 10:40:58 +0200
In-Reply-To: <CAN1APdcUOt_wRf4qt6JeqBJrYrxkcihM4pGCuEohVy0b1OQf3g@mail.gmail.com>
Cc: Spencer Dawkins at IETF <spencerdawkins.ietf@gmail.com>, IETF QUIC WG <quic@ietf.org>
To: Mikkel Fahnøe Jørgensen <mikkelfj@gmail.com>
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Hi,

On 2020-12-7, at 10:09, Mikkel Fahnøe Jørgensen <mikkelfj@gmail.com> wrote:
> Today in QUIC v1 only the client can migrate.

that's not fully accurate. The server can try to migrate exactly one, early during the handshake, by sending the client a preferred_address transport parameter. This capability is very limited, in that it can only happen once and the client might not actually migrate, but it's not nothing.

Lars

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