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Relayed Echo Reply mechanism for LSP Ping

Document type: Replaced Internet-Draft (individual)
Document stream: No stream defined
Last updated: 2013-03-12 (latest revision 2013-01-31)
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-lsp-ping-relay-reply
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This Internet-Draft is no longer active.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:


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.


Zhi Zheng <>
Lizhong Jin <>
Tom Nadeau <>
George Swallow <>

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