MPLS-TP Shared-Ring protection (MSRP) mechanism for ring topology

Document Type Replaced Internet-Draft (mpls WG)
Authors Weiqiang Cheng  , Lei Wang  , Han Li  , Huub van Helvoort  , Kai Liu  , Jie Dong  , He Jia  , Fang Li  , Yang Jian  , Junfang Wang 
Last updated 2015-10-14 (latest revision 2015-08-13)
Replaced by RFC 8227
Stream Internent Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Adopted by a WG
Document shepherd Ross Callon
IESG IESG state Replaced by draft-ietf-mpls-tp-shared-ring-protection
Consensus Boilerplate Unknown
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Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document describes requirements, architecture and solutions for MPLS-TP Shared Ring Protection (MSRP) in the ring topology for point- to-point (P2P) services. The mechanism of MSRP is illustrated and how it satisfies the requirements for optimized ring protection in RFC 5654 is analyzed. This document also defines the Ring Protection Switch (RPS) Protocol which is used to coordinate the protection behavior of the nodes on MPLS ring.


Weiqiang Cheng (
Lei Wang (
Han Li (
Huub van Helvoort (
Kai Liu (
Jie Dong (
He Jia (
Fang Li (
Yang Jian (
Junfang Wang (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)