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Limit delayed ack timer to 1 RTT #1663

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merged 3 commits into from Aug 28, 2018
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Limit delayed ack timer to 1 RTT #1663

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5521fab
Limit delayed ack timer to 1 RTT
ianswett Aug 15, 2018
69278e4
Update draft-ietf-quic-transport.md
ianswett Aug 15, 2018
6f3238f
should never
ianswett Aug 16, 2018
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4 changes: 2 additions & 2 deletions draft-ietf-quic-transport.md
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Expand Up @@ -3409,8 +3409,8 @@ acknowledge packets containing only ACK frames when sending ACK frames in
response to other packets. Implementations MUST NOT send more than one packet
containing only an ACK frame per received packet that contains frames other than
an ACK frame. Packets containing non-ACK frames MUST be acknowledged
immediately or when a delayed ack timer expires. The delayed ack timer should
never delay an ACK for longer than an RTT, which ensures an ACK frame is sent
immediately or when a delayed ack timer expires. The delayed ack timer MUST
NOT delay an ACK for longer than an RTT, which ensures an ACK frame is sent
at least once per RTT if new packets needing acknowledgement were received.

To limit ACK blocks to those that have not yet been received by the sender, the
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