RFC 3782 (rfc3782) - Page 1 of 19

The NewReno Modification to TCP's Fast Recovery Algorithm

Alternative Format: Original Text Document
Next >
Network Working Group                                           S. Floyd
Request for Comments: 3782                                          ICSI
Obsoletes: 2582                                             T. Henderson
Category: Standards Track                                         Boeing
                                                               A. Gurtov
                                                             TeliaSonera
                                                              April 2004


       The NewReno Modification to TCP's Fast Recovery Algorithm

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2004).  All Rights Reserved.

Abstract

   The purpose of this document is to advance NewReno TCP's  Fast
   Retransmit and Fast Recovery algorithms in RFC 2582 from Experimental
   to Standards Track status.

   The main change in this document relative to RFC 2582 is to specify
   the Careful variant of NewReno's Fast Retransmit and Fast Recovery
   algorithms.  The base algorithm described in RFC 2582 did not attempt
   to avoid unnecessary multiple Fast Retransmits that can occur after a
   timeout.  However, RFC 2582 also defined "Careful" and "Less Careful"
   variants that avoid these unnecessary Fast Retransmits, and
   recommended the Careful variant.  This document specifies the
   previously-named "Careful" variant as the basic version of NewReno
   TCP.













Floyd, et al.               Standards Track
Next >