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Proportional Rate Reduction for TCP

Document Type Replaced Internet-Draft (individual)
Expired & archived
Authors Matt Mathis , Nandita Dukkipati , Yuchung Cheng
Last updated 2020-11-01
Replaced by draft-ietf-tcpm-prr-rfc6937bis
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-tcpm-prr-rfc6937bis
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document updates the Proportional Rate Reduction (PRR) algorithm described as experimental in RFC 6937 to standards track. PRR potentially replaces the Fast Recovery and Rate-Halving algorithms. All of these algorithms regulate the amount of data sent by TCP or other transport protocol during loss recovery. PRR more accurately regulates the actual flight size through recovery such that at the end of recovery it will be as close as possible to the ssthresh, as determined by the congestion control algorithm.


Matt Mathis
Nandita Dukkipati
Yuchung Cheng

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)