Re: [quicwg/base-drafts] Which DCID do Handshake retransmissions use? (#3348)

Kazuho Oku <> Wed, 05 February 2020 11:49 UTC

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Date: Wed, 05 Feb 2020 03:49:10 -0800
From: Kazuho Oku <>
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Subject: Re: [quicwg/base-drafts] Which DCID do Handshake retransmissions use? (#3348)
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@huitema The problem is not that simple.

Consider the case where the server receives ClientFinished and sends two 1-RTT packets, the first packet containing HANDSHAKE_DONE, and the second packet containing an NCID with RPT set to 1.

If the first 1-RTT packet gets lost, the client receives a request to retire the connection ID before *it* confirms the handshake.

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