Sender RTT Estimate Option for the Datagram Congestion Control Protocol (DCCP), July 2011
- File formats:
- PROPOSED STANDARD
- RFC 4342, RFC 5622
- G. Renker
- dccp (tsv)
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This document specifies an update to the round-trip time (RTT) estimation algorithm used for TFRC (TCP-Friendly Rate Control) congestion control by the Datagram Congestion Control Protocol (DCCP). It updates specifications for the CCID-3 and CCID-4 Congestion Control IDs of DCCP.
The update addresses parameter-estimation problems occurring with TFRC-based DCCP congestion control. It uses a recommendation made in the original TFRC specification to avoid the inherent problems of receiver-based RTT sampling, by utilising higher-accuracy RTT samples already available at the sender.
It is integrated into the feature set of DCCP as an end-to-end negotiable extension. [STANDARDS-TRACK]
For the definition of Status, see RFC 2026.
For the definition of Stream, see RFC 4844.