Switching Provider Edge Protection for MPLS and MPLS Transport Profile Static Multi-Segment Pseudowires
RFC 7771, “Switching Provider Edge Protection for MPLS and MPLS Transport Profile Static Multi-Segment Pseudowires”, is a Proposed Standard document published in January 2016 by A. Malis, L. Andersson, H. van Helvoort, J. Shin, L. Wang, A. D'Alessandro. It updates RFC 6870. The canonical text is published by the RFC Editor.
Abstract
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.
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 7771 is hosted at rfc-editor.org. Available in TXT,HTML.
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