Internet Engineering Task Force (IETF) D. Frost
Request for Comments: 7167 Blue Sun
Category: Informational S. Bryant
ISSN: 2070-1721 Cisco Systems
M. Bocci
Alcatel-Lucent
L. Berger
LabN Consulting
April 2014
A Framework for Point-to-Multipoint MPLS in Transport Networks
Abstract
The Multiprotocol Label Switching Transport Profile (MPLS-TP) is the
common set of MPLS protocol functions defined to enable the
construction and operation of packet transport networks. The MPLS-TP
supports both point-to-point and point-to-multipoint transport paths.
This document defines the elements and functions of the MPLS-TP
architecture that are applicable specifically to supporting point-to-
multipoint transport paths.
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.
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/rfc7167.
Frost, et al. Informational [Page 1]RFC 7167 MPLS Transport Profile P2MP Framework April 2014Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.2. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Applicability . . . . . . . . . . . . . . . . . . . . . . . . 4
3. MPLS-TP P2MP Requirements . . . . . . . . . . . . . . . . . . 4
4. Architecture . . . . . . . . . . . . . . . . . . . . . . . . 6
4.1. MPLS-TP Encapsulation and Forwarding . . . . . . . . . . 6
5. Operations, Administration, and Maintenance . . . . . . . . . 6
6. Control Plane . . . . . . . . . . . . . . . . . . . . . . . . 7
6.1. P2MP LSP Control Plane . . . . . . . . . . . . . . . . . 8
6.2. P2MP PW Control Plane . . . . . . . . . . . . . . . . . . 8
7. Survivability . . . . . . . . . . . . . . . . . . . . . . . . 8
8. Network Management . . . . . . . . . . . . . . . . . . . . . 9
9. Security Considerations . . . . . . . . . . . . . . . . . . . 9
10. References . . . . . . . . . . . . . . . . . . . . . . . . . 9
10.1. Normative References . . . . . . . . . . . . . . . . . . 9
10.2. Informative References . . . . . . . . . . . . . . . . . 10
Frost, et al. Informational [Page 2]RFC 7167 MPLS Transport Profile P2MP Framework April 20141. Introduction
The Multiprotocol Label Switching Transport Profile (MPLS-TP) is the
common set of MPLS protocol functions defined to meet the
requirements specified in [RFC5654]. The MPLS-TP Framework [RFC5921]
provides an overall introduction to the MPLS-TP and defines the
general architecture of the Transport Profile, as well as the aspects
specific to point-to-point transport paths. The purpose of this
document is to define the elements and functions of the MPLS-TP
architecture applicable specifically to supporting point-to-
multipoint transport paths.
1.1. Scope
This document defines the elements and functions of the MPLS-TP
datatracker.ietf.org