{
  "number": 5143,
  "title": "Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) Circuit Emulation Service over MPLS (CEM) Encapsulation",
  "authors": [
    "A. Malis",
    "J. Brayley",
    "J. Shirron",
    "L. Martini",
    "S. Vogelsang"
  ],
  "published": "2008-02",
  "status": "Historic",
  "stream": "INDEPENDENT",
  "pages": 24,
  "formats": [
    "TXT",
    "HTML"
  ],
  "abstract": "This document describes a historical method for encapsulating Synchronous Optical Network/Synchronous Digital Hierarchy (SONET/SDH) Path signals for transport across packet-switched networks (PSNs). The PSNs explicitly supported by this document include MPLS and IP. Note that RFC 4842 describes the standards-track protocol for this functionality, and new implementations must use RFC 4842 rather than this document except when interoperability with older implementations is desired. This memo defines a Historic Document for the Internet community.",
  "keywords": [
    "psn",
    "packet switched network",
    "RFC4842"
  ],
  "draft": "draft-malis-sonet-ces-mpls-09",
  "doi": "10.17487/RFC5143",
  "obsoleted_by": [
    "RFC4842"
  ],
  "urls": {
    "html": "https://rfc.dk/rfc5143/",
    "text": "https://rfc.dk/rfc5143.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc5143",
    "datatracker": "https://datatracker.ietf.org/doc/rfc5143/"
  },
  "text_modified": "2008-02-15T22:59:44Z"
}