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

[Martin Thomson <[e-mail]>]

martinthomson commented on this pull request.



> @@ -244,11 +249,9 @@ ack-eliciting packet. QUIC recovery algorithms do not assume the peer sends
 an ACK immediately when receiving a second ack-eliciting packet.
 
 In order to accelerate loss recovery and reduce timeouts, the receiver SHOULD
-send an immediate ACK when it receives a new packet which is not one greater
-than the largest received packet number. A receiver MAY send immediate ACKs
-for the next few ack-eliciting packets that are received, but SHOULD NOT
-send an immediate ACK for more than 1/8 RTT after receiving an out-of-order
-packet.
+send immediate ACKs for an interval after it receives an out-of-order packet.

So I'm still not clear.  If I get a continuous stream of reordered packets, a) when do I cease immediate ACKs, and b) if I do stop immediate ACKs, when can I start again?

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