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

Loa Andersson | Zendy; Hanneke van Helvoort | Zendy; Ji Hye Shin | Zendy; Lei Wang | Zendy; A. D'Alessandro | Zendy

Open Access

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

Author(s) -

Loa Andersson,

Hanneke van Helvoort,

Ji Hye Shin,

Lei Wang,

A. D'Alessandro

Publication year - 2016

Publication title -

rfc

Language(s) - English

Resource type - Reports

DOI - 10.17487/rfc7771

Subject(s) - multiprotocol label switching , enhanced data rates for gsm evolution , label switching , computer network , computer science , telecommunications , quality of service

In MPLS and MPLS Transport Profile (MPLS-TP) environments, staticallyprovisioned Single-Segment Pseudowires (SS-PWs) are protected againsttunnel failure via MPLS-level and MPLS-TP-level tunnel protection.With statically provisioned Multi-Segment Pseudowires (MS-PWs), eachsegment of the MS-PW is likewise protected from tunnel failures viaMPLS-level and MPLS-TP-level tunnel protection. However, static MS-PWsare not protected end-to-end against failure of one of the SwitchingProvider Edge Routers (S-PEs) along the path of the MS-PW. Thisdocument describes how to achieve this protection via redundant MS-PWsby updating the existing procedures in RFC 6870. It also contains anoptional approach based on MPLS-TP Linear Protection.

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