RFC4927 · Path Computation Element Communication Protocol (PCECP) Specific Requirements for Inter-Area MPLS and GMPLS Traffic Engineering

{
  "id": "RFC4927",
  "number": 4927,
  "title_en": "Path Computation Element Communication Protocol (PCECP) Specific Requirements for Inter-Area MPLS and GMPLS Traffic Engineering",
  "title_ru": "",
  "summary_ru": "",
  "purpose_ru": "",
  "use_ru": "",
  "full_translation_path": "",
  "full_translation_checked_at": "",
  "full_translation_source_sha256": "",
  "architect_note_ru": "",
  "topics_ru": [],
  "translation_state": "not_prepared",
  "verification_level": "not_prepared",
  "verification_level_ru": "Русская выжимка не подготовлена",
  "verification_note_ru": "",
  "abstract_en": "For scalability purposes, a network may comprise multiple Interior Gateway Protocol (IGP) areas. An inter-area Traffic Engineered Label Switched Path (TE-LSP) is an LSP that transits through at least two IGP areas. In a multi-area network, topology visibility remains local to a given area, and a head-end Label Switching Router (LSR) cannot compute an inter-area shortest constrained path. One key application of the Path Computation Element (PCE)-based architecture is the computation of inter-area TE-LSP paths. The PCE Communication Protocol (PCECP) is used to communicate computation requests from Path Computation Clients (PCCs) to PCEs, and to return computed paths in responses. This document lists a detailed set of PCECP-specific requirements for support of inter-area TE-LSP path computation. It complements the generic requirements for a PCE Communication Protocol. This memo provides information for the Internet community.",
  "authors": [
    "J.-L. Le Roux"
  ],
  "organizations": [],
  "publication_date": "2007-06-01",
  "current_status": "INFORMATIONAL",
  "current_status_ru": "Информационный",
  "publication_status": "INFORMATIONAL",
  "publication_status_ru": "Информационный",
  "lifecycle": "informational",
  "lifecycle_ru": "Справочный",
  "stream": "IETF",
  "stream_ru": "IETF",
  "area": "rtg",
  "area_ru": "Маршрутизация",
  "working_group": "pce",
  "source_draft": "draft-ietf-pce-pcecp-interarea-reqs-05",
  "page_count": 12,
  "doi": "10.17487/RFC4927",
  "keywords": [
    "gmpls",
    "te-lsp",
    "traffic engineered label switched path",
    "pce",
    "path computation element"
  ],
  "formats": [
    "TXT",
    "HTML"
  ],
  "relations": {
    "obsoletes": [],
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    "updates": [],
    "updated_by": [],
    "is_also": [],
    "see_also": []
  },
  "links": {
    "info": "https://www.rfc-editor.org/info/rfc4927/",
    "html": "https://www.rfc-editor.org/rfc/rfc4927.html",
    "txt": "https://www.rfc-editor.org/rfc/rfc4927.txt",
    "datatracker": "https://datatracker.ietf.org/doc/rfc4927/"
  }
}