Limit data and stream counts
04A receiver advertises absolute byte limits for each stream and the whole connection, plus separate stream-count limits.
Related RFCs and changes
“Updates” changes part of an earlier RFC. “Obsoletes” replaces it. This list shows selected related documents.
DIAGRAM§ 4.1 ↗
RFC 9000 · § 4.1EXAMPLE
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03
Advertise new credit.
A larger MAX_DATA value lets already-permitted stream data continue.
Protocol participantThreat or exceptionProtocol controlSimplified drawings · precise section references
Read the updated RFC section ↗
Credit limits new data, not retransmission of the same bytes.
- MAX_STREAM_DATA raises a stream’s byte-offset limit; MAX_DATA raises the connection-wide data limit.
- Endpoints must not send new data beyond either applicable limit.
- MAX_STREAMS limits how many streams of a type the peer can open; it is not a byte allowance.
A receiver decides when to increase limits. Congestion control is a further network constraint, specified in RFC 9002.
Read the RFC section ↗Diagrams simplify the RFC. Read the linked sections for complete requirements.
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