Generalized Multi-Protocol Label Switching (GMPLS) Extensions for Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) Control
RFC 4606
Document | Type |
RFC - Proposed Standard
(August 2006; Errata)
Updated by RFC 6344
Obsoletes RFC 3946
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Authors | Eric Mannie , Dimitri Papadimitriou | ||
Last updated | 2018-12-20 | ||
Replaces | draft-papadimitriou-ccamp-rfc3946bis | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 4606 (Proposed Standard) | |
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Ross Callon | ||
Send notices to | (None) |
Network Working Group E. Mannie Request for Comments: 4606 Perceval Obsoletes: 3946 D. Papadimitriou Category: Standards Track Alcatel August 2006 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 cof this memo is unlimited. Copyright Notice Copyright (C) The Internet Society (2006). Abstract This document provides minor clarification to RFC 3946. 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 GMPLS signaling is used. Table of Contents 1. Introduction ....................................................2 2. SONET and SDH Traffic Parameters ................................3 2.1. SONET/SDH Traffic Parameters ...............................3 2.2. RSVP-TE Details ............................................9 2.3. CR-LDP Details ............................................10 3. SONET and SDH Labels ...........................................11 4. Acknowledgements ...............................................16 5. Security Considerations ........................................16 6. IANA Considerations ............................................16 Contributors ......................................................17 Appendix 1. Signal Type Values Extension for VC-3 .................20 Annex 1. Examples .................................................20 Normative References ..............................................23 Mannie & Papadimitriou Standards Track [Page 1] RFC 4606 GMPLS Extensions for SONET & SDH Control August 2006 1. Introduction As described in [RFC3945], Generalized MPLS (GMPLS) extends MPLS from supporting packet (Packet Switching Capable, or 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 American National Standards Institute (ANSI) [T1.105] and ITU-T [G.707], as well as with that in [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). Mannie & Papadimitriou Standards Track [Page 2] RFC 4606 GMPLS Extensions for SONET & SDH Control August 2006 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. These traffic parameters specify a base set of capabilities for SONET ANSI [T1.105] and SDH ITU-T [G.707], such as concatenation andShow full document text