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The Stream Control Transmission Protocol (SCTP) as a Transport for the Session Initiation Protocol (SIP) (RFC4168)

IP.com Disclosure Number: IPCOM000129250D
Original Publication Date: 2005-Oct-01
Included in the Prior Art Database: 2005-Oct-04
Document File: 11 page(s) / 21K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

J. Rosenberg: AUTHOR [+3]

Abstract

This document specifies a mechanism for usage of SCTP (the Stream Control Transmission Protocol) as the transport mechanism between SIP (Session Initiation Protocol) entities. SCTP is a new protocol that provides several features that may prove beneficial for transport between SIP entities that exchange a large amount of messages, including gateways and proxies. As SIP is transport-independent, support of SCTP is a relatively straightforward process, nearly identical to support for TCP.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 13% of the total text.

Network Working Group                                       J. Rosenberg
Request for Comments: 4168                                 Cisco Systems
Category: Standards Track                                 H. Schulzrinne
                                                     Columbia University
                                                            G. Camarillo
                                                                Ericsson
                                                            October 2005


            The Stream Control Transmission Protocol (SCTP)
        as a Transport for the Session Initiation Protocol (SIP)

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 (2005).

Abstract

   This document specifies a mechanism for usage of SCTP (the Stream
   Control Transmission Protocol) as the transport mechanism between SIP
   (Session Initiation Protocol) entities.  SCTP is a new protocol that
   provides several features that may prove beneficial for transport
   between SIP entities that exchange a large amount of messages,
   including gateways and proxies.  As SIP is transport-independent,
   support of SCTP is a relatively straightforward process, nearly
   identical to support for TCP.

Rosenberg, et al.           Standards Track                     [Page 1]
RFC 4168              SCTP as a Transport for SIP           October 2005


Table of Contents

   1. Introduction ....................................................2
   2. Terminology .....................................................2
   3. Potential Benefits ..............................................2
      3.1. Advantages over UDP ........................................3
      3.2. Advantages over TCP ........................................3
   4. Transport Parameter .............................................5
   5. SCTP Usage ......................................................5
      5.1. Mapping of SIP Transactions into SCTP Streams ..............5
   6. Locating a SIP Server ...........................................6
   7. Security Considerations .........................................7
   8. IANA Considerations ...........