Re: [quicwg/base-drafts] Reword Immediate ACK Recommendation (#2424)

Martin Thomson <> Wed, 06 February 2019 02:40 UTC

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From: Martin Thomson <>
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Subject: Re: [quicwg/base-drafts] Reword Immediate ACK Recommendation (#2424)
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martinthomson commented on this pull request.

> @@ -134,6 +134,11 @@ Crypto Packets:
 : Packets containing CRYPTO data sent in Initial or Handshake
+Out-of-order Packets:
+: Packets that do not increase the largest received packet number for its
+cryptographic context by exactly one.

I think that there are two cases we care about, I only caught the first

- an earlier packet was delayed - so there is a gap before this one
- this packet was delayed - and we already received a higher-numbered one

Maybe just: "Packets arrive out of order when packets are lost or delayed."  Which doesn't really capture all the reasons, but might suffice.

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