RFC 4447: Pseudowire Setup and Maintenance Using the Label Distribution Protocol (LDP)
This RFC has been replaced. Do not implement against it for new work — it was formally obsoleted by RFC 8077.
Current document in this lineage: RFC 8077 — Pseudowire Setup and Maintenance Using the Label Distribution Protocol (LDP)
In plain English — editorial summary, not part of the RFC
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]
Document record
- Document ID
- RFC4447
- Published
- April 2006
- Authors
- L. Martini; E. Rosen; N. El-Aawar; T. Smith; G. Heron
- Status
- PROPOSED STANDARD
- Stream
- IETF
- Area
- rtg
- Pages
- 33
- Also known as
- —
- Obsoleted by:
- RFC 8077
Topics
Standards lineage
This document is one revision in a chain of 3 RFCs, each formally replacing the one before it.
- RFC 4447 (2006)
- RFC 6723 (2012)
- RFC 8077 (2017) ✓
Referenced by
4 later RFCs formally update or obsolete part of this document.
- RFC 6723Update of the Pseudowire Control-Word Negotiation MechanismObsoleted
September 2012
- RFC 6870Pseudowire Preferential Forwarding Status BitUpdated
February 2013
- RFC 7358Label Advertisement Discipline for LDP Forwarding Equivalence Classes (FECs)Current
October 2014
- RFC 8077Pseudowire Setup and Maintenance Using the Label Distribution Protocol (LDP)Current
February 2017
Related documents
Ranked automatically by shared keywords, IETF area and stream — not by editorial selection.
- RFC 4448Encapsulation Methods for Transport of Ethernet over MPLS NetworksUpdated
April 2006
- RFC 4558Node-ID Based Resource Reservation Protocol (RSVP) Hello: A Clarification StatementCurrent
June 2006
- RFC 4577OSPF as the Provider/Customer Edge Protocol for BGP/MPLS IP Virtual Private Networks (VPNs)Current
June 2006
- RFC 4618Encapsulation Methods for Transport of PPP/High-Level Data Link Control (HDLC) over MPLS NetworksCurrent
September 2006
- RFC 4257Framework for Generalized Multi-Protocol Label Switching (GMPLS)-based Control of Synchronous Digital Hierarchy/Synchronous Optical Networking (SDH/SONET) NetworksCurrent
December 2005
- RFC 4726A Framework for Inter-Domain Multiprotocol Label Switching Traffic EngineeringCurrent
November 2006
- RFC 5038The Label Distribution Protocol (LDP) Implementation Survey ResultsCurrent
October 2007
- RFC 3815Definitions of Managed Objects for the Multiprotocol Label Switching (MPLS), Label Distribution Protocol (LDP)Current
June 2004
Also filed under
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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.
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