Switching Provider Edge (S-PE) Protection for MPLS and MPLS Transport Profile (MPLS-TP) Static Multi-Segment Pseudowires (RFC7771)
Original Publication Date: 2016-Jan-01
Included in the Prior Art Database: 2016-Feb-09
Internet Society Requests For Comment (RFCs)
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.
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.
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