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Relayed Echo Reply mechanism for LSP Ping

Document Type Replaced Internet-Draft (individual)
Authors Zhi Zheng , Lizhong Jin , Thomas Nadeau , George Swallow
Last updated 2013-03-12 (Latest revision 2013-01-31)
Replaces draft-ietf-mpls-interas-lspping, draft-zj-mpls-lsp-ping-reply-relay
Replaced by RFC 7743
Stream (None)
Intended RFC status (None)
Expired & archived
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Replaced by draft-ietf-mpls-lsp-ping-relay-reply
Telechat date (None)
Responsible AD (None)
Send notices to (None)
This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at:


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
Thomas Nadeau
George Swallow

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