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Re: [quicwg/base-drafts] Update ACK generation policy (#3501)

ianswett <notifications@github.com> Sun, 22 March 2020 19:27 UTC

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Subject: Re: [quicwg/base-drafts] Update ACK generation policy (#3501)
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ianswett commented on this pull request.



> @@ -3170,11 +3170,21 @@ delayed retransmissions from the peer. For Initial and Handshake packets,
 a max_ack_delay of 0 is used. The sender uses the receiver's `max_ack_delay`
 value in determining timeouts for timer-based retransmission, as detailed in
 Section 5.2.1 of {{QUIC-RECOVERY}}.
+The max_ack_delay needs to be set so that at least several samples can

max_ack_delay is unilateral, chosen prior to an RTT sample, and never changed over the course of the connection(unless one implements the ack-frequency extension, of course).

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