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Version 5.12.0, 2015-02-26
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Early Retransmit for TCP and Stream Control Transmission Protocol (SCTP)

Approval Announcement

Draft of message to be sent after approval:

From: The IESG <>
To: IETF-Announce <>
Cc: Internet Architecture Board <>,
    RFC Editor <>, 
    tcpm mailing list <>, 
    tcpm chair <>
Subject: Document Action: 'Early Retransmit for TCP and SCTP' to Experimental RFC

The IESG has approved the following document:

- 'Early Retransmit for TCP and SCTP '
   <draft-ietf-tcpm-early-rexmt-04.txt> as an Experimental RFC

This document is the product of the TCP Maintenance and Minor Extensions Working Group. 

The IESG contact persons are Lars Eggert and Magnus Westerlund.

A URL of this Internet-Draft is:
Technical Summary

This document proposes a new mechanism for TCP and SCTP that can be
used to recover lost segments when a connection's congestion window
is small. This allows the transport to use fast retransmit to recover
losses that would otherwise require a lengthy retransmission timeout.

Document Quality

There is limited implementation experience.  There are no MIBs or
other special items requiring expert review.


Wesley Eddy ( is the document shepherd.
Lars Eggert ( reviewed it for the IESG.