Framework Architecture for Signaling Transport
RFC 2719

Document Type RFC - Informational (October 1999; No errata)
Last updated 2013-03-02
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IESG IESG state RFC 2719 (Informational)
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Network Working Group                                              L. Ong
Request for Comments: 2719                                Nortel Networks
Category: Informational                                         I. Rytina
                                                                M. Garcia
                                                                 Ericsson
                                                          H. Schwarzbauer
                                                                 L. Coene
                                                                  Siemens
                                                                   H. Lin
                                                                Telcordia
                                                                I. Juhasz
                                                                    Telia
                                                              M. Holdrege
                                                                   Lucent
                                                                 C. Sharp
                                                            Cisco Systems
                                                             October 1999

             Framework Architecture for Signaling Transport

Status of this Memo

   This memo provides information for the Internet community.  It does
   not specify an Internet standard of any kind.  Distribution of this
   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

Abstract

   This document defines an architecture framework and functional
   requirements for transport of signaling information over IP.  The
   framework describes relationships between functional and physical
   entities exchanging signaling information, such as Signaling Gateways
   and Media Gateway Controllers.  It identifies interfaces where
   signaling transport may be used and the functional and performance
   requirements that apply from existing Switched Circuit Network (SCN)
   signaling protocols.

Ong, et al.                  Informational                      [Page 1]
RFC 2719     Framework Architecture for Signaling Transport October 1999

Table of Contents

   1. Introduction..................................................2
   1.1 Overview.....................................................2
   1.2 Terminology..................................................3
   1.3  Scope.......................................................5
   2.  Signaling Transport Architecture.............................5
   2.1  Gateway Component Functions.................................5
   2.2  SS7 Interworking for Connection Control.....................6
   2.3  ISDN Interworking for Connection Control....................8
   2.4  Architecture for Database Access............................9
   3. Protocol Architecture........................................10
   3.1 Signaling Transport Components..............................10
   3.2 SS7 access for Media Gateway Control........................11
   3.3 Q.931 Access to MGC.........................................12
   3.4 SS7 Access to IP/SCP........................................12
   3.5 SG to SG....................................................14
   4. Functional Requirements......................................15
   4.1 Transport of SCN Signaling Protocols........................15
   4.2 Performance of SCN Signaling Protocols......................17
   4.2.1 SS7 MTP Requirements......................................17
   4.2.2 SS7 MTP Level 3 Requirements..............................17
   4.2.3 SS7 User Part Requirements................................18
   4.2.4 ISDN Signaling Requirements...............................18
   5. Management...................................................19
   6. Security Considerations......................................19
   6.1 Security Requirements.......................................19
   6.2 Security Mechanisms Currently Available in IP Networks......20
   7. Abbreviations................................................21
   8. Acknowledgements.............................................21
   9. References...................................................21
   Authors' Addresses..............................................22
   Full Copyright Statement........................................24

1. Introduction

1.1 Overview

   This document defines an architecture framework for transport of
   message-based signaling protocols over IP networks.  The scope of
   this work includes definition of encapsulation methods, end-to-end
   protocol mechanisms and use of existing IP capabilities to support
   the functional and performance requirements for signaling transport.

   The framework portion describes the relationships between functional
   and physical entities used in signaling transport, including the
   framework for control of Media Gateways, and other scenarios where
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