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A Framework for Ethernet Tree (E-Tree) Service over a Multiprotocol Label Switching (MPLS) Network
draft-ietf-l2vpn-etree-frwk-04

Document type: Active Internet-Draft (l2vpn WG)
Document stream: IETF
Last updated: 2014-01-21
Intended RFC status: Unknown
Other versions: plain text, pdf, html

IETF State: WG Document
Document shepherd: No shepherd assigned

IESG State: I-D Exists
Responsible AD: (None)
Send notices to: No addresses provided

Network Working Group                               Raymond Key (editor)
Internet Draft                                Lucy Yong, Huawei (editor)
Category Informational                             Simon Delord, Telstra
                                              Frederic Jounay, Orange CH
                                                             Lizhong Jin

 Expires: July 2014                                   January 21, 2014

    A Framework for Ethernet Tree (E-Tree) Service over a Multiprotocol
                       Label Switching (MPLS) Network

                       draft-ietf-l2vpn-etree-frwk-04

 Abstract

    This document describes an Ethernet-Tree (E-Tree) solution framework
    for supporting the Metro Ethernet Forum (MEF) E-Tree service over a
    Multiprotocol Label Switching (MPLS) network. The objective is to
    provide a simple and effective approach to emulate E-Tree services
    in addition to Ethernet LAN (E-LAN) services on an existing MPLS
    network.

    Status of this Memo

    This Internet-Draft is submitted to IETF in full conformance with
    the provisions of BCP 78 and BCP 79.

    Internet-Drafts are working documents of the Internet Engineering
    Task Force (IETF), its areas, and its working groups. Note that
    other groups may also distribute working documents as Internet-
    Drafts.

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    months and may be updated, replaced, or obsoleted by other documents
    at any time. It is inappropriate to use Internet-Drafts as reference
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    The list of Internet-Draft Shadow Directories can be accessed at
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    This Internet-Draft will expire on July 21, 2014.

 Key & Yong                                                     [Page 1]
 Internet-Draft            E-Tree Framework                 January 2014

 Copyright Notice

    Copyright (c) 2013 IETF Trust and the persons identified as the
    document authors.  All rights reserved.

    This document is subject to BCP 78 and the IETF Trust's Legal
    Provisions Relating to IETF Documents
    (http://trustee.ietf.org/license-info) in effect on the date of
    publication of this document. Please review these documents
    carefully, as they describe your rights and restrictions with
    respect to this document. Code Components extracted from this
    document must include Simplified BSD License text as described in
    Section 4.e of the Trust Legal Provisions and are provided without
    warranty as described in the Simplified BSD License.

 Table of Contents

    1. Introduction...................................................3
       1.1. Terminology...............................................3
    2. Overview.......................................................4
       2.1. Ethernet Bridge Network...................................4
       2.2. MEF Multipoint Ethernet Services: E-LAN and E-Tree........4
       2.3. IETF L2VPN................................................5
          2.3.1. Virtual Private LAN Service (VPLS)...................5
          2.3.2. Ethernet VPN (EVPN)..................................5
          2.3.3. Virtual Private Multicast Service (VPMS).............6
    3. E-Tree Architecture Reference Model............................6
    4. E-Tree Use Cases...............................................8
    5. L2VPN Gaps for Emulating MEF E-Tree Service....................9
       5.1. No Differentiation on AC Role.............................9
       5.2. No AC Role Indication or Advertisement....................9
    6. Security Considerations.......................................10
    7. IANA Considerations...........................................10
    8. Contributing Authors..........................................10
    9. References....................................................11
       9.1. Normative References.....................................11
       9.2. Informative References...................................11

 Key & Yong                                                     [Page 2]
 Internet-Draft            E-Tree Framework                 January 2014

 1. Introduction

    This document describes an Ethernet-Tree (E-Tree) solution framework
    for supporting the Metro Ethernet Forum (MEF) E-Tree service over a
    Multiprotocol Label Switching (MPLS) network. The objective is to
    provide a simple and effective approach to emulate E-Tree services
    in addition to Ethernet LAN (E-LAN) services on an existing MPLS
    network.

    This document extends the existing IETF specified Layer 2 Virtual
    Private Network (L2VPN) framework [RFC4664] to provide the emulation

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