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Re: [quicwg/base-drafts] Add Definitions (#1557)

Martin Thomson <notifications@github.com> Tue, 17 July 2018 21:55 UTC

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Subject: Re: [quicwg/base-drafts] Add Definitions (#1557)
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martinthomson commented on this pull request.



> +
+In-flight:
+
+: Packets are considered in-flight when they have been sent
+  and neither acknowledged or declared lost, and they are not
+  ACK-only.
+
+Retransmittable Frames:
+
+: All frames besides ACK, ACK_ECN, or PADDING are considered
+  retransmittable.
+
+Retransmittable Packets:
+
+: Packets that contain retransmittable frames elicit an ACK from
+  the receiver and are called retransmittable packets.

The notion that a packet is retransmittable is a misnomer because it creates the impression that you can retransmit the packet.  Similarly, we don't retransmit frames either.  The distinction that is relevant to your uses of these terms is not whether the packet is able to be retransmitted, but whether the packet contains frames other than ACK/ACK_ECN/PADDING.

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