Pseudowire Setup and Maintenance Using the Label Distribution Protocol
RFC 4447, “Pseudowire Setup and Maintenance Using the Label Distribution Protocol”, is a Proposed Standard document published in April 2006 by L. Martini, E. Rosen, N. El-Aawar, T. Smith, G. Heron. It has since been updated by RFC 6723, RFC 6870, RFC 7358. It has been obsoleted by RFC 8077 — refer to the newer document for the authoritative version. The canonical text is published by the RFC Editor.
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]
What “Proposed Standard” means
An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.
The canonical text of RFC 4447 is hosted at rfc-editor.org. Available in TXT,HTML.
- RFC 4446 IANA Allocations for Pseudowire Edge to Edge Emulation
- RFC 4448 Encapsulation Methods for Transport of Ethernet over MPLS Networks
- RFC 4445 A Proposed Media Delivery Index
- RFC 4449 Securing Mobile IPv6 Route Optimization Using a Static Shared Key
- RFC 4444 Management Information Base for Intermediate System to Intermediate System
- RFC 4450 Getting Rid of the Cruft: Report from an Experiment in Identifying and Reclassifying Obsolete Standards Documents
- RFC 4443 Internet Control Message Protocol for the Internet Protocol Version 6 Specification
- RFC 4451 BGP MULTI_EXIT_DISC Considerations