RFC 6323

"Sender RTT Estimate Option for the Datagram Congestion Control Protocol (DCCP)", July 2011

Canonical URL:

http://www.rfc-editor.org/rfc/rfc6323.txt
This document is also available in this non-normative format: PDF.

Status:

PROPOSED STANDARD

Updates:

RFC 4342, RFC 5622

Authors:

G. Renker
G. Fairhurst

Stream:

IETF

Source:

dccp (tsv)

Please refer here for any errata for this document. To submit a new errata report, go to the main errata page.

Abstract

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 Stream, see RFC 4844.