diff --git a/draft-ietf-quic-transport.md b/draft-ietf-quic-transport.md index bcbc9fe630..eb1e97a58b 100644 --- a/draft-ietf-quic-transport.md +++ b/draft-ietf-quic-transport.md @@ -4174,11 +4174,11 @@ receives a STREAM frame with an ID greater than the limit it has sent MUST treat this as a stream error of type STREAM_ID_ERROR ({{error-handling}}), unless this is a result of a change in the initial limits (see {{zerortt-parameters}}). -A receiver MUST NOT renege on an advertisement; that is, once a receiver -advertises a stream ID via a MAX_STREAM_ID frame, it MUST NOT subsequently -advertise a smaller maximum ID. A sender may receive MAX_STREAM_ID frames out -of order; a sender MUST therefore ignore any MAX_STREAM_ID that does not -increase the maximum. +A receiver cannot renege on an advertisement; that is, once a receiver +advertises a stream ID via a MAX_STREAM_ID frame, advertising a smaller maximum +ID has no effect. A sender MUST ignore any MAX_STREAM_ID frame that does not +increase the maximum stream ID. + ## Sending and Receiving Data @@ -4274,11 +4274,10 @@ maximum absolute byte offset of a stream, while MAX_DATA sends the maximum of the sum of the absolute byte offsets of all streams. A receiver MAY advertise a larger offset at any point by sending MAX_DATA or -MAX_STREAM_DATA frames. A receiver MUST NOT renege on an advertisement; that -is, once a receiver advertises an offset, it MUST NOT subsequently advertise a -smaller offset. A sender could receive MAX_DATA or MAX_STREAM_DATA frames out -of order; a sender MUST therefore ignore any flow control offset that does not -move the window forward. +MAX_STREAM_DATA frames. A receiver cannot renege on an advertisement; that is, +once a receiver advertises an offset, advertising a smaller offset has no +effect. A sender MUST therefore ignore any MAX_DATA or MAX_STREAM_DATA frames +that do not increase flow control limits. A receiver MUST close the connection with a FLOW_CONTROL_ERROR error ({{error-handling}}) if the peer violates the advertised connection or stream