Efficient Layer 2 Multicast with Point-to-Point Pseudowires
draft-cheng-pals-p2p-pw-multicast-01

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Last updated 2019-11-18
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PALS                                                            W. Cheng
Internet-Draft                                              China Mobile
Intended status: Informational                                   J. Dong
Expires: May 21, 2020                                Huawei Technologies
                                                       November 18, 2019

      Efficient Layer 2 Multicast with Point-to-Point Pseudowires
                  draft-cheng-pals-p2p-pw-multicast-01

Abstract

   Multicast services such as Evolved Multimedia Broadcast/Multicast
   Service (eMBMS) become more and more popular in mobile networks.  In
   mobile transport network, it is important for the operators to
   provide efficient transport of multicast services with existing
   network devices.  This document describes a mechanism of using point-
   to-point Pseudowires (PW) [RFC3985] to achieve efficient layer 2
   multicast transportation in mobile transport networks.The document
   gives a multicast method by utilizing a Point-to-Point (P2P) path
   between nodes in a packet transport network , according to the
   destination IP address.  With it, the PTN nodes can replicate and
   forward the service message, which are received from the multicast
   server, to the plurality of multicast clients corresponding to the
   destination IP address.

Status of This Memo

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   This Internet-Draft will expire on May 21, 2020.

Copyright Notice

   Copyright (c) 2019 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Cheng & Dong              Expires May 21, 2020                  [Page 1]
Internet-DraftEfficient Layer 2 Multicast with Point-to-PoiNovember 2019

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Conventions used in this document . . . . . . . . . . . .   3
       1.1.1.  Terminology . . . . . . . . . . . . . . . . . . . . .   3
       1.1.2.  Requirements Language . . . . . . . . . . . . . . . .   4
   2.  Efficient Multicast with P2P PWs  . . . . . . . . . . . . . .   4
   3.  Protection Mechanism  . . . . . . . . . . . . . . . . . . . .   4
   4.  OAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   5
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   5
   8.  Normative References  . . . . . . . . . . . . . . . . . . . .   5
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   6

1.  Introduction

   Multicast services such as evolved Multimedia Broadcast/Multicast
   Service (eMBMS) become more and more popular in mobile networks.  In
   mobile transport network, it is important for the operators to
   provide efficient transport of multicast services with existing
   network devices.

Cheng & Dong              Expires May 21, 2020                  [Page 2]
Internet-DraftEfficient Layer 2 Multicast with Point-to-PoiNovember 2019

                                 ----------------
                            /////    multicast   \\\\\
                          //          source          \\
                         |                              |
                        |     Layer 3 Multicast Network  |
                         |                              |
                          \\                          //
                            \\\\\                /////
                                +--+--+     +--+--+
                                | R-1 +-----+ R-2 |
                                +--+--+     +--+--+     L2
                                   |           |
                                +--+--+     +--+--+  Multicast
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