Generalized Multi-Protocol Label Switching (GMPLS) Signaling Extensions for G.709 Optical Transport Networks Control
RFC 4328
Document | Type |
RFC - Proposed Standard
(January 2006; No errata)
Updated by RFC 7139
Updates RFC 3471
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|
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Author | Dimitri Papadimitriou | ||
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 4328 (Proposed Standard) | |
Action Holders |
(None)
|
||
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Alex Zinin | ||
Send notices to | kireeti@juniper.net, adrian@olddog.co.uk |
Network Working Group D. Papadimitriou, Ed. Request for Comments: 4328 Alcatel Updates: 3471 January 2006 Category: Standards Track Generalized Multi-Protocol Label Switching (GMPLS) Signaling Extensions for G.709 Optical Transport Networks 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 (2006). Abstract This document is a companion to the Generalized Multi-Protocol Label Switching (GMPLS) signaling documents. It describes the technology- specific information needed to extend GMPLS signaling to control Optical Transport Networks (OTN); it also includes the so-called pre-OTN developments. Table of Contents 1. Introduction ....................................................2 1.1. Conventions Used in This Document ..........................3 2. GMPLS Extensions for G.709 - Overview ...........................3 3. Generalized Label Request .......................................4 3.1. Common Part ................................................5 3.1.1. LSP Encoding Type ...................................5 3.1.2. Switching Type ......................................6 3.1.3. Generalized-PID (G-PID) .............................6 3.2. G.709 Traffic Parameters ...................................8 3.2.1. Signal Type (ST) ....................................8 3.2.2. Number of Multiplexed Components (NMC) ..............9 3.2.3. Number of Virtual Components (NVC) .................10 3.2.4. Multiplier (MT) ....................................10 3.2.5. Reserved Fields ....................................10 4. Generalized Label ..............................................10 4.1. ODUk Label Space ..........................................11 4.2. Label Distribution Rules ..................................13 Papadimitriou Standards Track [Page 1] RFC 4328 GMPLS Signaling Extensions for G.709 January 2006 4.3. Optical Channel Label Space ...............................14 5. Examples .......................................................14 6. RSVP-TE Signaling Protocol Extensions ..........................16 7. Security Considerations ........................................16 8. IANA Considerations ............................................16 9. Acknowledgements ...............................................18 10. References ....................................................18 10.1. Normative References .....................................18 10.2. Informative References ...................................19 11. Contributors ..................................................19 Appendix A. Abbreviations .........................................21 Appendix B. G.709 Indexes .........................................22 1. Introduction Generalized Multi-Protocol Label Switching (GMPLS) [RFC3945] extends MPLS from supporting Packet Switching Capable (PSC) interfaces and switching to include support of four new classes of interfaces and switching: Layer-2 Switching (L2SC), Time-Division Multiplex (TDM), Lambda Switch (LSC), and Fiber-Switch (FSC) Capable. A functional description of the extensions to MPLS signaling that are needed to support these new classes of interfaces and switching is provided in [RFC3471]. [RFC3473] describes the RSVP-TE-specific formats and mechanisms needed to support all four classes of interfaces. This document presents the technology details that are specific to G.709 Optical Transport Networks (OTN) as specified in the ITU-T G.709 recommendation [ITUT-G709] (and referenced documents), including pre-OTN developments. Per [RFC3471], G.709 technology- specific parameters are carried through the signaling protocol in dedicated traffic parameter objects. The G.709 traffic parameters defined hereafter (see Section 3.2) MUST be used when the label is encoded as defined in this document. Moreover, the label MUST be encoded as defined in Section 4 when these G.709 traffic parameters are used. In the context of this memo, by pre-OTN developments, one refers to Optical Channel, Digital Wrapper and Forward Error Correction (FEC) solutions that are not fully G.709 compliant. Details concerning pre-OTN Synchronous Optical Network (SONET)/Synchronous Digital Hierarchy (SDH) based solutions including Section/Regenerator SectionShow full document text