Return Path Specified LSP Ping

The information below is for an old version of the document
Document Type Expired Internet-Draft (mpls WG)
Authors Frederic JOUNAY  , Mach Chen  , Simon DeLord  , Ning So  , Wei Cao 
Last updated 2012-05-02 (latest revision 2011-10-30)
Replaces draft-chen-mpls-return-path-specified-lsp-ping
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Expired & archived
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines extensions to the failure-detection protocol for Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs) known as "LSP Ping" that allow selection of the LSP to use for the echo reply return path. Enforcing a specific return path can be used to verify bidirectional connectivity and also increase LSP ping robustness. It may also be used by Bidirectional Forwarding Detection (BFD) for MPLS bootstrap signaling thereby making BFD for MPLS more robust.


Frederic JOUNAY (
Mach Chen (
Simon DeLord (
Ning So (
Wei Cao (

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