{
  "draft": "draft-ietf-mpls-tp-temporal-hitless-psm-14",
  "doc_id": "RFC8256",
  "title": "Requirements for Hitless MPLS Path Segment Monitoring",
  "authors": [
    "A. D'Alessandro",
    "L. Andersson",
    "S. Ueno",
    "K. Arai",
    "Y. Koike"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "16",
  "pub_status": "INFORMATIONAL",
  "status": "INFORMATIONAL",
  "source": "Multiprotocol Label Switching",
  "abstract": "One of the most important Operations, Administration, and Maintenance (OAM) capabilities for transport-network operation is fault localization.  An in-service, on-demand path segment monitoring function of a transport path is indispensable, particularly when the service monitoring function is activated only between endpoints.  However, the current segment monitoring approach defined for MPLS (including the MPLS Transport Profile (MPLS-TP)) in RFC 6371 \"Operations, Administration, and Maintenance Framework for MPLS-Based Transport Networks\" has drawbacks.  This document provides an analysis of the existing MPLS-TP OAM mechanisms for the path segment monitoring and provides requirements to guide the development of new OAM tools to support Hitless Path Segment Monitoring (HPSM).",
  "pub_date": "October 2017",
  "keywords": [
    "HPSM",
    "MPLS",
    "MPLS Transport Profile",
    "mpls-tp",
    "OAM",
    "monitoring",
    "Hitless Path Segment Monitoring",
    "Path Segment Monitoring"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC8256",
  "errata_url": null
}