A Scalable and Topology-Aware MPLS Dataplane Monitoring System
draft-ietf-spring-oam-usecase-06

Document Type Active Internet-Draft (spring WG)
Last updated 2017-04-21 (latest revision 2017-02-22)
Replaces draft-geib-segment-routing-oam-usecase, draft-geib-spring-oam-usecase
Stream IETF
Intended RFC status Informational
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spring                                                      R. Geib, Ed.
Internet-Draft                                          Deutsche Telekom
Intended status: Informational                               C. Filsfils
Expires: August 25, 2017                               C. Pignataro, Ed.
                                                                N. Kumar
                                                     Cisco Systems, Inc.
                                                       February 21, 2017

     A Scalable and Topology-Aware MPLS Dataplane Monitoring System
                    draft-ietf-spring-oam-usecase-06

Abstract

   This document describes features of a path monitoring system and
   related use cases.  Segment based routing enables a scalable and
   simple method to monitor data plane liveliness of the complete set of
   paths belonging to a single domain.  The MPLS monitoring system adds
   features to the traditional MPLS ping and LSP path trace, in a very
   complementary way.  MPLS topology awareness reduces management and
   control plane involvement of OAM measurements while enabling new OAM
   features.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
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   This Internet-Draft will expire on August 25, 2017.

Copyright Notice

   Copyright (c) 2017 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

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   publication of this document.  Please review these documents
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Table of Contents

   1.  Acronyms  . . . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  An MPLS Topology-Aware Path Monitoring System . . . . . . . .   6
   5.  SR-based Path Monitoring Use Case Illustration  . . . . . . .   7
     5.1.  Use Case 1 - LSP Dataplane Monitoring . . . . . . . . . .   7
     5.2.  Use Case 2 - Monitoring a Remote Bundle . . . . . . . . .  10
     5.3.  Use Case 3 - Fault Localization . . . . . . . . . . . . .  11
   6.  Failure Notification from PMS to LERi . . . . . . . . . . . .  11
   7.  Applying SR to Monitoring non-SR based LSPs (LDP and possibly
       RSVP-TE)  . . . . . . . . . . . . . . . . . . . . . . . . . .  11
   8.  PMS Monitoring of Different Segment ID Types  . . . . . . . .  12
   9.  Connectivity Verification Using PMS . . . . . . . . . . . . .  13
   10. Extensions of Specifications Relevant to this Use Case  . . .  13
   11. IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   12. Security Considerations . . . . . . . . . . . . . . . . . . .  13
   13. Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   14. References  . . . . . . . . . . . . . . . . . . . . . . . . .  14
     14.1.  Normative References . . . . . . . . . . . . . . . . . .  14
     14.2.  Informative References . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

1.  Acronyms

   ECMP    Equal-Cost Multi-Path

   IGP     Interior Gateway Protocol

   LER     Label Edge Router

   LSP     Label Switched Path

   LSR     Label Switching Router

   OAM     Operations, Administration, and Maintenance

   PMS     Path Monitoring System

   RSVP-TE Resource ReserVation Protocol-Traffic Engineering

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   SID     Segment Identifier

   SR      Segment Routing

   SRGB    Segment Routing Global Block

2.  Introduction
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