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Proxy MPLS Echo Request (RFC7555) Disclosure Number: IPCOM000242111D
Original Publication Date: 2015-Jun-01
Included in the Prior Art Database: 2015-Jun-19
Document File: 56 page(s) / 62K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

G. Swallow: AUTHOR [+2]


This document is motivated by two broad issues in connection with diagnosing Point-to-Multipoint (P2MP) Label Switched Paths (LSPs). The first is scalability due to the automatic replication of Multiprotocol Label Switching (MPLS) Echo Request messages as they proceed down the tree. The second, which is primarily motivated by LDP-based P2MP and Multipoint-to-Multipoint (MP2MP) LSPs [RFC6388], is the ability to trace a sub-LSP from leaf node to root node.

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Internet Engineering Task Force (IETF)                        G. Swallow Request for Comments: 7555                                        V. Lim Category: Standards Track                                  Cisco Systems ISSN: 2070-1721                                                S. Aldrin                                                      Huawei Technologies                                                                June 2015

                         Proxy MPLS Echo Request


   This document defines a means of remotely initiating Multiprotocol    Label Switched Protocol (MPLS) Pings on Label Switched Paths.  An    MPLS Proxy Ping Request is sent to any Label Switching Router along a    Label Switched Path.  The primary motivations for this facility are    first to limit the number of messages and related processing when    using LSP Ping in large Point-to-Multipoint LSPs, and second to    enable tracing from leaf to leaf (or root).

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 5741.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Copyright Notice

   Copyright (c) 2015 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal    Provisions Relating to IETF Documents    ( in effect on the date of    publication of this document.  Please review these documents    carefully, as they describe your rights and restrictions with respect    to this document.  Code Components extracted from this document must    include Simplified BSD License text as described in Section 4.e of    the Trust Legal Provisions and are provided without warranty as    described in the Simplified BSD License.

Swallow, et al.              Standards Track                    [Page 1]
 RFC 7555                     Proxy LSP Ping                    June 2015

 Table of Contents

   1. Introduction ....................................................3

      1.1. Requirements Language ......................................4