Session Peering for Multimedia Interconnect (SPEERMINT) Terminology
RFC 5486

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Network Working Group                                      D. Malas, Ed.
Request for Comments: 5486                                     CableLabs
Category: Informational                                    D. Meyer, Ed.
                                                              March 2009

  Session Peering for Multimedia Interconnect (SPEERMINT) Terminology

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.

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Abstract

   This document defines the terminology that is to be used in
   describing Session PEERing for Multimedia INTerconnect (SPEERMINT).

Malas & Meyer                Informational                      [Page 1]
RFC 5486                 SPEERMINT Terminology                March 2009

Table of Contents

   1. Introduction ....................................................2
   2. SPEERMINT Context ...............................................3
   3. General Definitions .............................................4
      3.1. Signaling Path Border Element ..............................4
      3.2. Data Path Border Element ...................................4
      3.3. Session Establishment Data .................................4
      3.4. Call Routing ...............................................5
      3.5. PSTN .......................................................5
      3.6. IP Path ....................................................5
      3.7. Peer Network ...............................................5
      3.8. Service Provider ...........................................5
      3.9. SIP Service Provider .......................................6
   4. Peering .........................................................6
      4.1. Layer 3 Peering ............................................6
      4.2. Layer 5 Peering ............................................6
           4.2.1. Direct Peering ......................................7
           4.2.2. Indirect Peering ....................................7
           4.2.3. On-Demand Peering ...................................7
           4.2.4. Static Peering ......................................7
      4.3. Functions ..................................................7
           4.3.1. Signaling Function ..................................7
           4.3.2. Media Function ......................................8
           4.3.3. Look-Up Function ....................................8
           4.3.4. Location Routing Function ...........................8
   5. Federations .....................................................8
   6. Security Considerations .........................................9
   7. Acknowledgments .................................................9
   8. Informative References .........................................10

1.  Introduction

   The term "Voice over IP Peering" (VoIP Peering) has historically been
   used to describe a wide variety of practices pertaining to the
   interconnection of service provider networks and to the delivery of
   Session Initiation Protocol (SIP [2]) call termination over those
   interconnections.

   The discussion of these interconnections has at times been confused
   by the fact that the term "peering" is used in various contexts to
   describe interconnection at different levels in a protocol stack.
   Session Peering for Multimedia Interconnect focuses on how to
   identify and route real-time sessions (such as VoIP calls) at the
   session layer, and it does not (necessarily) cover the exchange of
   packet-routing data or media sessions.  In particular, "layer 5
   network" is used here to refer to the interconnection between SIP

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