{"draft":"draft-ietf-mpls-lsp-ping-relay-reply-11","doc_id":"RFC7743","title":"Relayed Echo Reply Mechanism for Label Switched Path (LSP) Ping","authors":["J. Luo, Ed.","L. Jin, Ed.","T. Nadeau, Ed.","G. Swallow, Ed."],"format":["ASCII","HTML"],"page_count":"18","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"Multiprotocol Label Switching","abstract":"In some inter-AS (Autonomous System) and inter-area deployment\r\nscenarios for RFC 4379 (\"Label Switched Path (LSP) Ping and                          \r\nTraceroute\"), a replying Label Switching Router (LSR) may not have\r\nthe available route to an initiator, and the Echo Reply message sent\r\nto the initiator would be discarded, resulting in false negatives or\r\na complete failure of operation of the LSP Ping and Traceroute.  This\r\ndocument describes extensions to the LSP Ping mechanism to enable the\r\nreplying LSR to have the capability to relay the Echo Response by a\r\nset of routable intermediate nodes to the initiator.  This document\r\nupdates RFC 4379.","pub_date":"January 2016","keywords":[],"obsoletes":[],"obsoleted_by":[],"updates":["RFC4379"],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC7743","errata_url":null}