Detecting Multi-Protocol Label Switched (MPLS) Data Plane Failures
draft-ietf-mpls-rfc4379bis-09

Document Type Active Internet-Draft (mpls WG)
Last updated 2017-01-04 (latest revision 2016-10-28)
Replaces draft-smack-mpls-rfc4379bis
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Network Working Group                                        K. Kompella
Internet-Draft                                    Juniper Networks, Inc.
Obsoletes: 4379, 6424, 6829, 7537 (if                         G. Swallow
           approved)                                   C. Pignataro, Ed.
Intended status: Standards Track                                N. Kumar
Expires: May 1, 2017                                               Cisco
                                                               S. Aldrin
                                                                  Google
                                                                 M. Chen
                                                                  Huawei
                                                        October 28, 2016

   Detecting Multi-Protocol Label Switched (MPLS) Data Plane Failures
                     draft-ietf-mpls-rfc4379bis-09

Abstract

   This document describes a simple and efficient mechanism that can be
   used to detect data plane failures in Multi-Protocol Label Switching
   (MPLS) Label Switched Paths (LSPs).  There are two parts to this
   document: information carried in an MPLS "echo request" and "echo
   reply" for the purposes of fault detection and isolation, and
   mechanisms for reliably sending the echo reply.

   This document obsoletes RFCs 4379, 6424, 6829, and 7537.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   Internet-Drafts are draft documents valid for a maximum of six months
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   This Internet-Draft will expire on May 1, 2017.

Kompella, et al.           Expires May 1, 2017                  [Page 1]
Internet-Draft     Detecting MPLS Data Plane Failures       October 2016

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
     1.1.  Conventions . . . . . . . . . . . . . . . . . . . . . . .   4
     1.2.  Structure of This Document  . . . . . . . . . . . . . . .   5
     1.3.  Contributors  . . . . . . . . . . . . . . . . . . . . . .   5
     1.4.  Scope of RFC4379bis work  . . . . . . . . . . . . . . . .   5
   2.  Motivation  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     2.1.  Use of Address Range 127/8  . . . . . . . . . . . . . . .   8
     2.2.  Router Alert Option . . . . . . . . . . . . . . . . . . .   9
   3.  Packet Format . . . . . . . . . . . . . . . . . . . . . . . .   9
     3.1.  Return Codes  . . . . . . . . . . . . . . . . . . . . . .  14
     3.2.  Target FEC Stack  . . . . . . . . . . . . . . . . . . . .  16
       3.2.1.  LDP IPv4 Prefix . . . . . . . . . . . . . . . . . . .  17
       3.2.2.  LDP IPv6 Prefix . . . . . . . . . . . . . . . . . . .  18
       3.2.3.  RSVP IPv4 LSP . . . . . . . . . . . . . . . . . . . .  18
       3.2.4.  RSVP IPv6 LSP . . . . . . . . . . . . . . . . . . . .  18
       3.2.5.  VPN IPv4 Prefix . . . . . . . . . . . . . . . . . . .  19
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