Relayed Echo Reply mechanism for LSP Ping

The information below is for an old version of the document
Document Type Expired Internet-Draft (mpls WG)
Authors Luo Jian  , Lizhong Jin  , Thomas Nadeau  , George Swallow 
Last updated 2014-02-06 (latest revision 2013-08-05)
Replaces draft-zjns-mpls-lsp-ping-relay-reply
Stream IETF
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Expired & archived
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In some inter-AS and inter-area deployment scenarios for LSP Ping and Traceroute, a replying LSR may not have the available route to the initiator, and the Echo Reply message sent to the initiator would be discarded resulting in false negatives or complete failure of operation of LSP Ping and Traceroute. This document describes extensions to LSP Ping mechanism to enable the replying LSR to have the capability to relay the echo response by a set of routable intermediate nodes to the initiator during the traceroute process in inter-AS and inter-area scenarios.


Luo Jian (
Lizhong Jin (
Thomas Nadeau (
George Swallow (

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