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Re: [quicwg/base-drafts] Mixing connection IDs is OK (#3870)

Praveen Balasubramanian <notifications@github.com> Wed, 15 July 2020 17:35 UTC

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Date: Wed, 15 Jul 2020 10:35:04 -0700
From: Praveen Balasubramanian <notifications@github.com>
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Subject: Re: [quicwg/base-drafts] Mixing connection IDs is OK (#3870)
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@pravb commented on this pull request.



> @@ -3192,8 +3192,8 @@ packets at the same encryption level.
 
 Receivers MAY route based on the information in the first packet contained in a
 UDP datagram.  Senders MUST NOT coalesce QUIC packets for different connections
-into a single UDP datagram.  Receivers SHOULD ignore any subsequent packets with
-a different Destination Connection ID than the first packet in the datagram.
+into a single UDP datagram.  Receivers SHOULD ignore any subsequent packets for
+a different connection than the first packet in the datagram.
 

I do not agree with this change. It's unnecessary complexity for no clear benefit. We should fix the sender text to say MUST NOT coalesce different connection IDs into a single datagram. If there are scenarios where this is needed let's revisit in QUIC v2.

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