RFC 3758 (rfc3758) - Page 1 of 22

Stream Control Transmission Protocol (SCTP) Partial Reliability Extension

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Network Working Group                                         R. Stewart
Request for Comments: 3758                                    M. Ramalho
Category: Standards Track                            Cisco Systems, Inc.
                                                                  Q. Xie
                                                          Motorola, Inc.
                                                               M. Tuexen
                                      Univ. of Applied Sciences Muenster
                                                               P. Conrad
                                                  University of Delaware
                                                                May 2004


              Stream Control Transmission Protocol (SCTP)
                     Partial Reliability Extension

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

   This memo describes an extension to the Stream Control Transmission
   Protocol (SCTP) that allows an SCTP endpoint to signal to its peer
   that it should move the cumulative ack point forward.  When both
   sides of an SCTP association support this extension, it can be used
   by an SCTP implementation to provide partially reliable data
   transmission service to an upper layer protocol.  This memo describes
   the protocol extensions, which consist of a new parameter for INIT
   and INIT ACK, and a new FORWARD TSN chunk type, and provides one
   example of a partially reliable service that can be provided to the
   upper layer via this mechanism.












Stewart, et al.             Standards Track
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