A new Request for Comments is now available in online RFC libraries. RFC 7743 Title: Relayed Echo Reply Mechanism for Label Switched Path (LSP) Ping Author: J. Luo, Ed., L. Jin, Ed., T. Nadeau, Ed., G. Swallow, Ed. Status: Standards Track Stream: IETF Date: January 2016 Mailbox: luo.jian@zte.com.cn, lizho.jin@gmail.com, tnadeau@lucidvision.com, swallow@cisco.com Pages: 18 Characters: 39321 Updates: RFC 4379 I-D Tag: draft-ietf-mpls-lsp-ping-relay-reply-11.txt URL: https://www.rfc-editor.org/info/rfc7743 DOI: http://dx.doi.org/10.17487/RFC7743 In some inter-AS (Autonomous System) and inter-area deployment scenarios for RFC 4379 ("Label Switched Path (LSP) Ping and Traceroute"), a replying Label Switching Router (LSR) may not have the available route to an initiator, and the Echo Reply message sent to the initiator would be discarded, resulting in false negatives or a complete failure of operation of the LSP Ping and Traceroute. This document describes extensions to the 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. This document updates RFC 4379. This document is a product of the Multiprotocol Label Switching Working Group of the IETF. This is now a Proposed Standard. STANDARDS TRACK: This document specifies an Internet Standards Track protocol for the Internet community, and requests discussion and suggestions for improvements. Please refer to the current edition of the Official Internet Protocol Standards (https://www.rfc-editor.org/standards) for the standardization state and status of this protocol. Distribution of this memo is unlimited. This announcement is sent to the IETF-Announce and rfc-dist lists. To subscribe or unsubscribe, see https://www.ietf.org/mailman/listinfo/ietf-announce https://mailman.rfc-editor.org/mailman/listinfo/rfc-dist For searching the RFC series, see https://www.rfc-editor.org/search For downloading RFCs, see https://www.rfc-editor.org/rfc.html Requests for special distribution should be addressed to either the author of the RFC in question, or to rfc-editor@rfc-editor.org. Unless specifically noted otherwise on the RFC itself, all RFCs are for unlimited distribution. The RFC Editor Team Association Management Solutions, LLC