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The Mechanism of MPLS-TP OAM Communication Based on MPLS-TP Sign Label

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Zongpeng Du , Yuefeng Ji , Yueming Lu
Last updated 2009-09-04
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document extends the applicability of the Generic Associated channel Label (GAL), enabling the realization of the communication between a Maintenance End Point (MEP) and a Maintenance Intermediate Point (MIP) in the MPLS-TP OAM architecture. This mechanism can only be used in the point-to-point co-routed bidirectional path of MPLS- TP networks. By introducing the MPLS-TP Sign Label, it enables the peer MEP to obtain the path information along the MPLS Label Switched Paths (LSPs) or MPLS pseudowires (PWs). After that, it could number the MIPs along the path, and each MIP could record the pairing relationship of the forward and the backward directions of that transport path.


Zongpeng Du
Yuefeng Ji
Yueming Lu

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