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Return Path Specified Label Switched Path (LSP) Ping (RFC7110)

IP.com Disclosure Number: IPCOM000234654D
Original Publication Date: 2014-Jan-01
Included in the Prior Art Database: 2014-Jan-25
Document File: 42 page(s) / 45K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

M. Chen: AUTHOR [+5]


This document defines extensions to the data-plane failure-detection protocol for Multiprotocol Label Switching (MPLS) Label Switched Paths (LSPs) known as "LSP ping" [RFC4379] that can be used to specify the return paths for the echo reply message, increasing the robustness of LSP ping, reducing the opportunity for error, and improving the reliability of the echo reply message. A new Reply Mode, which is referred to as "Reply via Specified Path", is added and a new Type-Length-Value (TLV), which is referred to as "Reply Path (RP) TLV", is defined in this memo. The procedures defined in this document currently only apply to "ping" mode. The "traceroute" mode is out of scope for this document.

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Internet Engineering Task Force (IETF)                           M. Chen Request for Comments: 7110                                        W. Cao Category: Standards Track                   Huawei Technologies Co., Ltd ISSN: 2070-1721                                                  S. Ning                                                      Tata Communications                                                                F. Jounay                                                                Orange CH                                                                S. Delord                                                             January 2014

           Return Path Specified Label Switched Path (LSP) Ping


   This document defines extensions to the data-plane failure-detection    protocol for Multiprotocol Label Switching (MPLS) Label Switched    Paths (LSPs) known as "LSP ping".  These extensions allow a selection    of the LSP to be used for the echo reply return path.  Enforcing a    specific return path can be used to verify bidirectional connectivity    and also increase LSP ping robustness.

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    http://www.rfc-editor.org/info/rfc7110.

 Chen, et al.                 Standards Track                    [Page 1]
 RFC 7110             Return Path Specified LSP Ping         January 2014

 Copyright Notice

   Copyright (c) 2014 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    (http://trustee.ietf.org/license-info) 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 i...