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Return Path Specified LSP Ping

Document type: Replaced Internet-Draft (individual)
Document stream: No stream defined
Last updated: 2010-08-30 (latest revision 2010-03-08)
Intended RFC status: Unknown
Other versions: (expired, archived): plain text, pdf, html

Stream State:No stream defined
Document shepherd: No shepherd assigned

IESG State: Replaced by draft-ietf-mpls-return-path-specified-lsp-ping
Responsible AD: (None)
Send notices to: No addresses provided

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found here:


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.


Mach Chen <>
Ning So <>
Frederic JOUNAY <>
Simon DeLord <>
Xinchun Guo <>
Wei Cao <>

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