Generalized Multi-Protocol Label Switching (GMPLS) Extensions for Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) Control
RFC 3946
| Document | Type |
RFC - Proposed Standard
(November 2004; No errata)
Obsoleted by RFC 4606
|
|
|---|---|---|---|
| Last updated | 2013-03-02 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Stream | WG state | (None) | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 3946 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Bert Wijnen | ||
| Send notices to | <ronald.p.bonica@mci.com>, <kireeti@juniper.net> | ||
Network Working Group E. Mannie
Request for Comments: 3946 Consultant
Category: Standards Track D. Papadimitriou
Alcatel
October 2004
Generalized Multi-Protocol Label Switching (GMPLS) Extensions for
Synchronous Optical Network (SONET) and
Synchronous Digital Hierarchy (SDH) Control
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 is a companion to the Generalized Multi-Protocol Label
Switching (GMPLS) signaling. It defines the Synchronous Optical
Network (SONET)/Synchronous Digital Hierarchy (SDH) technology
specific information needed when using GMPLS signaling.
Table of Contents
1. Introduction ................................................. 2
2. SONET and SDH Traffic Parameters ............................. 2
2.1. SONET/SDH Traffic Parameters ........................... 3
2.2. RSVP-TE Details ........................................ 9
2.3. CR-LDP Details ......................................... 9
3. SONET and SDH Labels ......................................... 10
4. Acknowledgments .............................................. 15
5. Security Considerations ...................................... 16
6. IANA Considerations .......................................... 16
7. References ................................................... 16
7.1. Normative References ................................... 16
Appendix 1 - Signal Type Values Extension for VC-3 ............... 18
Annex 1 - Examples ............................................... 18
Contributors ..................................................... 21
Authors' Addresses ............................................... 25
Full Copyright Statement ......................................... 26
Mannie & Papadimitriou Standards Track [Page 1]
RFC 3946 GMPLS Extensions for SONET/SDH Control October 2004
1. Introduction
As described in [RFC3945], Generalized MPLS (GMPLS) extends MPLS from
supporting packet (Packet Switching Capable - PSC) interfaces and
switching to include support of four new classes of interfaces and
switching: Layer-2 Switch Capable (L2SC), Time-Division Multiplex
(TDM), Lambda Switch Capable (LSC) and Fiber-Switch Capable (FSC). A
functional description of the extensions to MPLS signaling needed to
support the new classes of interfaces and switching is provided in
[RFC3471]. [RFC3473] describes RSVP-TE specific formats and
mechanisms needed to support all five classes of interfaces, and CR-
LDP extensions can be found in [RFC3472]. This document presents
details that are specific to Synchronous Optical Network
(SONET)/Synchronous Digital Hierarchy (SDH). Per [RFC3471],
SONET/SDH specific parameters are carried in the signaling protocol
in traffic parameter specific objects.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
Moreover, the reader is assumed to be familiar with the terminology
in ANSI [T1.105], ITU-T [G.707] as well as [RFC3471], [RFC3472], and
[RFC3473]. The following abbreviations are used in this document:
DCC: Data Communications Channel.
LOVC: Lower Order Virtual Container
HOVC: Higher Order Virtual Container
MS: Multiplex Section.
MSOH: Multiplex Section overhead.
POH: Path overhead.
RS: Regenerator Section.
RSOH: Regenerator section overhead.
SDH: Synchronous digital hierarchy.
SOH: Section overhead.
SONET: Synchronous Optical Network.
SPE: Synchronous Payload Envelope.
STM(-N): Synchronous Transport Module (-N) (SDH).
STS(-N): Synchronous Transport Signal-Level N (SONET).
VC-n: Virtual Container-n (SDH).
VTn: Virtual Tributary-n (SONET).
2. SONET and SDH Traffic Parameters
This section defines the GMPLS traffic parameters for SONET/SDH. The
protocol specific formats, for the SONET/SDH-specific RSVP-TE objects
and CR-LDP TLVs are described in sections 2.2 and 2.3 respectively.
Mannie & Papadimitriou Standards Track [Page 2]
RFC 3946 GMPLS Extensions for SONET/SDH Control October 2004
These traffic parameters specify indeed a base set of capabilities
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