TCP and SCTP RTO Restart

Document Type Replaced Internet-Draft (individual)
Authors Per Hurtig  , Andreas Petlund  , Michael Welzl 
Last updated 2013-05-13 (latest revision 2012-10-22)
Replaced by RFC 7765
Stream (None)
Intended RFC status (None)
Expired & archived
pdf htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-tcpm-rtorestart
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes a modified algorithm for managing the TCP and SCTP retransmission timers that provides faster loss recovery when a connection's amount of outstanding data is small. The modification allows the transport to restart its retransmission timer more aggressively in situations where fast retransmit cannot be used. This enables faster loss detection and recovery for connections that are short-lived or application-limited.


Per Hurtig (
Andreas Petlund (
Michael Welzl (

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