{
  "draft": "draft-martini-l2circuit-trans-mpls-19",
  "doc_id": "RFC4906",
  "title": "Transport of Layer 2 Frames Over MPLS",
  "authors": [
    "L. Martini, Ed.",
    "E. Rosen, Ed.",
    "N. El-Aawar, Ed."
  ],
  "format": [
    "TEXT",
    "HTML"
  ],
  "page_count": "22",
  "pub_status": "HISTORIC",
  "status": "HISTORIC",
  "source": "IETF - NON WORKING GROUP",
  "abstract": "This document describes methods for transporting the Protocol Data Units (PDUs) of layer 2 protocols such as Frame Relay, Asynchronous Transfer Mode (ATM) Adaption Layer 5 (AAL5), and Ethernet, and for providing a Synchronized Optical Network (SONET) circuit emulation service across an MPLS network.  This document describes the so-called \"draft-martini\" protocol, which has since been superseded by the Pseudowire Emulation Edge to Edge Working Group specifications described in RFC 4447 and related documents.  This memo defines a Historic Document for the Internet community.",
  "pub_date": "June 2007",
  "keywords": [
    "multiprotocol label switching",
    "pdu",
    "protocol data unit",
    "sonet",
    "synchronized optical network"
  ],
  "obsoletes": [],
  "obsoleted_by": [],
  "updates": [],
  "updated_by": [],
  "see_also": [],
  "doi": "10.17487/RFC4906",
  "errata_url": "https://www.rfc-editor.org/errata/rfc4906"
}