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Update draft-ietf-quic-recovery.md
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ianswett committed Aug 3, 2020
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10 changes: 5 additions & 5 deletions draft-ietf-quic-recovery.md
Expand Up @@ -348,11 +348,11 @@ latency at the peer or loss of previous ACK frames. Any delays beyond the
peer's max_ack_delay are therefore considered effectively part of path delay and
incorporated into the smoothed_rtt estimate.

The first ACK frame in the Handshake and ApplicationData packet number spaces can
be greatly delayed due to a lack of decryption keys at the time they're received.
For these two ACK frames, the max_ack_delay MAY be ignored if the sender chooses.
Note that if there are no prior RTT samples, ignoring max_ack_delay has no
impact.
The first ACK frame in the Handshake and ApplicationData packet number spaces
can be greatly delayed due to a lack of decryption keys at the time they're
received. For these two ACK frames, the max_ack_delay MAY be ignored if the
sender chooses. If the delayed ACK frame is the first RTT sample, ignoring
max_ack_delay has no impact.

When adjusting an RTT sample using peer-reported acknowledgement delays, an
endpoint:
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