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RSVP-TE Signaling Procedure for End-to-End GMPLS Restoration and Resource Sharing (RFC8131)

IP.com Disclosure Number: IPCOM000249707D
Original Publication Date: 2017-Mar-01
Included in the Prior Art Database: 2017-Mar-23
Document File: 30 page(s) / 33K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

X. Zhang: AUTHOR [+7]


Generalized Multiprotocol Label Switching (GMPLS) [RFC3945] defines a set of protocols, including Open Shortest Path First - Traffic Engineering (OSPF-TE) [RFC4203] and Resource Reservation Protocol - Traffic Engineering (RSVP-TE) [RFC3473]. These protocols can be used to set up Label Switched Paths (LSPs) in non-packet transport networks. The GMPLS protocol extends MPLS to support interfaces capable of Time Division Multiplexing (TDM), Lambda Switching and Fiber Switching. These switching technologies provide several protection schemes [RFC4426] [RFC4427] (e.g., 1+1, 1:N, and M:N).

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Internet Engineering Task Force (IETF)                          X. Zhang Request for Comments: 8131                                 H. Zheng, Ed. Category: Informational                              Huawei Technologies ISSN: 2070-1721                                           R. Gandhi, Ed.                                                                   Z. Ali                                                      Cisco Systems, Inc.                                                            P. Brzozowski                                                             ADVA Optical                                                               March 2017

                      RSVP-TE Signaling Procedure for              End-to-End GMPLS Restoration and Resource Sharing


   In non-packet transport networks, there are requirements where the    Generalized Multiprotocol Label Switching (GMPLS) end-to-end recovery    scheme needs to employ a restoration Label Switched Path (LSP) while    keeping resources for the working and/or protecting LSPs reserved in    the network after the failure occurs.

   This document reviews how the LSP association is to be provided using    Resource Reservation Protocol - Traffic Engineering (RSVP-TE)    signaling in the context of a GMPLS end-to-end recovery scheme when    using restoration LSP where failed LSP is not torn down.  In    addition, this document discusses resource sharing-based setup and    teardown of LSPs as well as LSP reversion procedures.  No new    signaling extensions are defined by this document, and it is strictly    informative in nature.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Not all documents    approved by the IESG are a candidate for any level of Internet    Standard; see Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at    http://www.rfc-editor.org/info/rfc8131.

 Zhang, et al.                 Informational                     [Page 1]
 RFC 8131         GMPLS Restoration an...