Internet Engineering Task Force (IETF) S. Bryant, Ed.
Request for Comments: 5994 M. Morrow
Category: Informational G. Swallow
ISSN: 2070-1721 Cisco Systems
R. Cherukuri
Juniper Networks
T. Nadeau
Huawei Technologies
N. Harrison
BT
B. Niven-Jenkins
Velocix
October 2010
Application of Ethernet Pseudowires to MPLS Transport Networks
Abstract
Ethernet pseudowires are widely deployed to support packet transport
of Ethernet services. These services in-turn provide transport for a
variety of client networks, e.g., IP and MPLS. This document uses
procedures defined in the existing IETF specifications of Ethernet
pseudowires carried over MPLS networks.
Many of the requirements for the services provided by the mechanisms
explained in this document are also recognized by the MPLS transport
profile (MPLS-TP) design effort formed jointly by the IETF and ITU-T.
The solution described here does not address all of the MPLS-TP
requirements, but it provides a viable form of packet transport
service using tools that are already available.
This document also serves as an indication that existing MPLS
techniques form an appropriate basis for the design of a fully-
featured packet transport solution addressing all of the requirements
of MPLS-TP.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Bryant, et al. Informational [Page 1]RFC 5994 Eth PWs to MPLS Transport Ntwks October 2010
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc5994.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 5
2. PWE3 Configuration . . . . . . . . . . . . . . . . . . . . . . 5
3. Operations, Administration, and Maintenance (OAM) . . . . . . 5
3.1. VCCV Profile 1: BFD without IP/UDP Headers . . . . . . . . 6
3.2. VCCV Profile 2: BFD with IP/UDP Headers . . . . . . . . . 6
4. MPLS Layer . . . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1. External Configuration . . . . . . . . . . . . . . . . . . 6
4.2. Control Plane Configuration . . . . . . . . . . . . . . . 7
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