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Only allow BLOCKED once per limit #510

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6 changes: 6 additions & 0 deletions draft-ietf-quic-transport.md
Original file line number Diff line number Diff line change
Expand Up @@ -2625,6 +2625,12 @@ sender, and to reasonably account for the possibiity of loss, a receiver should
send a MAX_DATA or MAX_STREAM_DATA frame at least two roundtrips before it
expects the sender to get blocked.

A sender sends a single BLOCKED or STREAM_BLOCKED frame only once when it
reaches a data limit. A sender MUST NOT send multiple BLOCKED or STREAM_BLOCKED
frames for the same data limit, unless the original frame is determined to be
lost. Another BLOCKED or STREAM_BLOCKED frame can be sent after the data limit
is increased.


## Stream Final Offset {#final-offset}

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