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Switching Provider Edge (S-PE) Protection for MPLS and MPLS Transport Profile (MPLS-TP) Static Multi-Segment Pseudowires (RFC7771) Disclosure Number: IPCOM000245112D
Original Publication Date: 2016-Jan-01
Included in the Prior Art Database: 2016-Feb-09
Document File: 18 page(s) / 19K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

A. Malis: AUTHOR [+6]


In MPLS and MPLS Transport Profile (MPLS-TP) Packet Switched Networks (PSNs), pseudowires (PWs) are transported by MPLS(-TP) Label Switched Paths (LSPs), also known as tunnels.

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Internet Engineering Task Force (IETF)                     A. Malis, Ed. Request for Comments: 7771                                  L. Andersson Updates: 6870                              Huawei Technologies Co., Ltd. Category: Standards Track                                H. van Helvoort ISSN: 2070-1721                                           Hai Gaoming BV                                                                  J. Shin                                                               SK Telecom                                                                  L. Wang                                                             China Mobile                                                          A. D'Alessandro                                                           Telecom Italia                                                             January 2016

  Switching Provider Edge (S-PE) Protection for MPLS and MPLS Transport            Profile (MPLS-TP) Static Multi-Segment Pseudowires


   In MPLS and MPLS Transport Profile (MPLS-TP) environments, statically    provisioned Single-Segment Pseudowires (SS-PWs) are protected against    tunnel failure via MPLS-level and MPLS-TP-level tunnel protection.    With statically provisioned Multi-Segment Pseudowires (MS-PWs), each    segment of the MS-PW is likewise protected from tunnel failures via    MPLS-level and MPLS-TP-level tunnel protection.  However, static MS-    PWs are not protected end-to-end against failure of one of the    Switching Provider Edge Routers (S-PEs) along the path of the MS-PW.    This document describes how to achieve this protection via redundant    MS-PWs by updating the existing procedures in RFC 6870.  It also    contains an optional approach based on MPLS-TP Linear Protection.

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at    htt...