{
  "draft": "draft-ietf-pwe3-control-protocol-17",
  "doc_id": "RFC4447",
  "title": "Pseudowire Setup and Maintenance Using the Label Distribution Protocol (LDP)",
  "authors": [
    "L. Martini, Ed.",
    "E. Rosen",
    "N. El-Aawar",
    "T. Smith",
    "G. Heron"
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "33",
  "pub_status": "PROPOSED STANDARD",
  "status": "PROPOSED STANDARD",
  "source": "Pseudowire Emulation Edge to Edge",
  "abstract": "Layer 2 services (such as Frame Relay, Asynchronous Transfer Mode, and Ethernet) can be \"emulated\" over an MPLS backbone by encapsulating the Layer 2 Protocol Data Units (PDU) and transmitting them over \"pseudowires\".  It is also possible to use pseudowires to provide low-rate Time Division Multiplexed and a Synchronous Optical NETworking circuit emulation over an MPLS-enabled network.  This document specifies a protocol for establishing and maintaining the pseudowires, using extensions to Label Distribution Protocol (LDP).  Procedures for encapsulating Layer 2 PDUs are specified in a set of companion documents. [STANDARDS-TRACK]",
  "pub_date": "April 2006",
  "keywords": [
    "mpls",
    "multiprotocol label switching protocol",
    "pdu",
    "protocol data units"
  ],
  "obsoletes": [],
  "obsoleted_by": [
    "RFC8077"
  ],
  "updates": [],
  "updated_by": [
    "RFC6723",
    "RFC6870",
    "RFC7358"
  ],
  "see_also": [],
  "doi": "10.17487/RFC4447",
  "errata_url": "https://www.rfc-editor.org/errata/rfc4447"
}