V5.2-User Adaptation Layer (V5UA)
RFC 3807
| Document | Type |
RFC - Proposed Standard
(June 2004; No errata)
Updates RFC 3057
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 3807 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Jon Peterson | ||
| Send notices to | (None) | ||
Network Working Group E. Weilandt
Request for Comments: 3807 N. Khanchandani
Updates: 3057 S. Rao
Category: Standards Track Nortel Networks
June 2004
V5.2-User Adaptation Layer (V5UA)
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).
Abstract
This document defines a mechanism for the backhauling of V5.2
messages over IP using the Stream Control Transmission Protocol
(SCTP). This protocol may be used between a Signaling Gateway (SG)
and a Media Gateway controller (MGC). It is assumed that the SG
receives V5.2 signaling over a standard V5.2 interface.
This document builds on the ISDN User Adaptation Layer Protocol (RFC
3057). It defines all necessary extensions to the IUA Protocol
needed for the V5UA protocol implementation.
Weilandt, et al. Standards Track [Page 1]
RFC 3807 V5.2-User Adaptation Layer (V5UA) June 2004
Table of Contents
1. Introduction ................................................. 2
1.1. Scope .................................................. 3
1.2. Terminology ............................................ 3
1.3. V5.2 Overview .......................................... 5
1.4. Distribution of responsibilities between MGC and SG .... 7
1.5. Client/Server Model .................................... 7
1.6. Addition to boundary primitives ........................ 7
1.6.1. V5 specific boundary primitives ................ 7
2. Conventions .................................................. 9
3. SCTP Stream Management ....................................... 10
4. Proposed V5.2 Backhaul Architecture .......................... 10
4.1. V5UA Message Header .................................... 11
4.2. V5 Naming Conventions for Interface Identifier ......... 12
4.3. V5 Additions to IUA Boundary Primitives ................ 13
4.4. Link Status Messages ................................... 14
4.5. Sa-Bit Messages ........................................ 16
4.6. Error Indication Message ............................... 17
5. Procedures ................................................... 18
5.1. V5 Layer 1 failure ..................................... 18
5.2. Loss of V5UA peer ...................................... 19
5.3. C-channel overload on SG ............................... 19
6. Examples ..................................................... 20
6.1. Link Identification Procedure (successful) ............. 20
7. Security Considerations ...................................... 21
8. IANA Considerations .......................................... 21
8.1. SCTP Payload Protocol Identifier ....................... 21
8.2. V5UA Port Number ....................................... 22
9. Acknowledgements ............................................. 22
10. References ................................................... 22
10.1. Normative References ................................... 22
10.2. Informative References ................................. 23
11. Authors' Addresses ........................................... 23
12. Full Copyright Statement ..................................... 24
1. Introduction
This document describes a method of implementing V5.2 backhaul
messaging over IP using a modified version of the ISDN User
Adaptation Layer Protocol (IUAP) [1]. V5UA builds on top of IUA,
defining the necessary extensions to IUA for a V5.2 implementation.
Since V5UA is meant to be an extension to IUAP, everything defined in
[1] is also valid for V5UA unless otherwise specified in this
document.
Weilandt, et al. Standards Track [Page 2]
RFC 3807 V5.2-User Adaptation Layer (V5UA) June 2004
This document does not describe the V5 standard itself. The V5
protocol is defined by ETSI standards [2,3]. Any description of the
V5 protocol in this document is meant to make the text easier to
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