A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Transport Area Working Group Working Group of the IETF.
Title : The NewReno Modification to TCP's Fast Recovery
Algorithm
Author(s) : S. Floyd, T. Henderson
Filename : draft-ietf-tsvwg-newreno-00.txt,.ps
Pages : 15
Date : 2003-6-20
RFC 2581 [RFC2581] documents the following four intertwined TCP
congestion control algorithms: Slow Start, Congestion Avoidance, Fast
Retransmit, and Fast Recovery. RFC 2581 [RFC2581] explicitly allows
certain modifications of these algorithms, including modifications
that use the TCP Selective Acknowledgement (SACK) option [RFC2018],
and modifications that respond to 'partial acknowledgments' (ACKs
which cover new data, but not all the data outstanding when loss was
detected) in the absence of SACK. The NewReno mechanism described in
this document describes a specific algorithm for responding to
partial acknowledgments, referred to as NewReno. This response to
partial acknowledgments was first proposed by Janey Hoe in [Hoe95].
RFC 2582 [RFC2582] specified the NewReno mechanisms as Experimental
in 1999. This document is a small revision of RFC 2582 intended to
advance the NewReno mechanisms to Proposed Standard. RFC 2581 notes
that the Fast Retransmit/Fast Recovery algorithm specified in that
document does not recover very efficiently from multiple losses in a
single flight of packets, and that RFC 2582 contains one set of
modifications to address this problem.
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