Inter-Domain MPLS and GMPLS Traffic Engineering -- Resource Reservation Protocol-Traffic Engineering (RSVP-TE) Extensions
RFC 5151
Document | Type | RFC - Proposed Standard (February 2008; Errata) | |
---|---|---|---|
Authors | Adrian Farrel , Vasseur Jp , Arthi Ayyangar | ||
Last updated | 2020-01-21 | ||
Replaces | draft-ayyangar-ccamp-inter-domain-rsvp-te | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized with errata bibtex | ||
Reviews | |||
Stream | WG state | (None) | |
Document shepherd | No shepherd assigned | ||
IESG | IESG state | RFC 5151 (Proposed Standard) | |
Action Holders |
(None)
|
||
Consensus Boilerplate | Unknown | ||
Telechat date | |||
Responsible AD | Ross Callon | ||
Send notices to | (None) |
Network Working Group A. Farrel, Ed. Request for Comments: 5151 Old Dog Consulting Updates: 3209, 3473 A. Ayyangar Category: Standards Track Juniper Networks JP. Vasseur Cisco Systems, Inc. February 2008 Inter-Domain MPLS and GMPLS Traffic Engineering -- Resource Reservation Protocol-Traffic Engineering (RSVP-TE) Extensions 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. Abstract This document describes procedures and protocol extensions for the use of Resource Reservation Protocol-Traffic Engineering (RSVP-TE) signaling in Multiprotocol Label Switching-Traffic Engineering (MPLS-TE) packet networks and Generalized MPLS (GMPLS) packet and non-packet networks to support the establishment and maintenance of Label Switched Paths that cross domain boundaries. For the purpose of this document, a domain is considered to be any collection of network elements within a common realm of address space or path computation responsibility. Examples of such domains include Autonomous Systems, Interior Gateway Protocol (IGP) routing areas, and GMPLS overlay networks. Farrel, et al. Standards Track [Page 1] RFC 5151 Inter-Domain MPLS & GMPLS RSVP-TE Extensions February 2008 Table of Contents 1. Introduction ....................................................3 1.1. Conventions Used in This Document ..........................3 1.2. Terminology ................................................4 2. Signaling Overview ..............................................4 2.1. Signaling Options ..........................................5 3. Procedures on the Domain Border Node ............................6 3.1. Rules on ERO Processing ....................................8 3.2. LSP Setup Failure and Crankback ...........................10 3.3. RRO Processing across Domains .............................11 3.4. Notify Message Processing .................................11 4. RSVP-TE Signaling Extensions ...................................12 4.1. Control of Downstream Choice of Signaling Method ..........12 5. Protection and Recovery of Inter-Domain TE LSPs ................13 5.1. Fast Recovery Support Using MPLS-TE Fast Reroute (FRR) ....14 5.1.1. Failure within a Domain (Link or Node Failure) .....14 5.1.2. Failure of Link at Domain Border ...................14 5.1.3. Failure of a Border Node ...........................15 5.2. Protection and Recovery of GMPLS LSPs .....................15 6. Reoptimization of Inter-Domain TE LSPs .........................16 7. Backward Compatibility .........................................17 8. Security Considerations ........................................18 9. IANA Considerations ............................................20 9.1. Attribute Flags for LSP_Attributes Object .................20 9.2. New Error Codes ...........................................20 10. Acknowledgments ...............................................21 11. References ....................................................21 11.1. Normative References ....................................21 11.2. Informative References ..................................22 Farrel, et al. Standards Track [Page 2] RFC 5151 Inter-Domain MPLS & GMPLS RSVP-TE Extensions February 2008 1. Introduction The requirements for inter-area and inter-AS (Autonomous System) Multiprotocol Label Switching (MPLS) Traffic Engineering (TE) are stated in [RFC4105] and [RFC4216], respectively. Many of these requirements also apply to Generalized MPLS (GMPLS) networks. The framework for inter-domain MPLS-TE is provided in [RFC4726]. This document presents procedures and extensions to Resource Reservation Protocol-Traffic Engineering (RSVP-TE) signaling for the setup and maintenance of traffic engineered Label Switched Paths (TE LSPs) that span multiple domains in MPLS-TE or GMPLS networks. The signaling procedures described in this document are applicable to MPLS-TE packet LSPs established using RSVP-TE ([RFC3209]) and all LSPs (packet and non-packet) that use RSVP-TE GMPLS extensions as described in [RFC3473].Show full document text