Use of BIER IPv6 Encapsulation (BIERv6) for Multicast VPN in IPv6 networks
draft-xie-bier-ipv6-mvpn-03

Document Type Active Internet-Draft (individual)
Authors Jingrong Xie  , Mike McBride  , Senthil Dhanaraj  , Liang Geng  , Gyan Mishra 
Last updated 2020-10-10
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Network Working Group                                             J. Xie
Internet-Draft                                       Huawei Technologies
Intended status: Standards Track                              M. McBride
Expires: April 13, 2021                                        Futurewei
                                                             S. Dhanaraj
                                                     Huawei Technologies
                                                                 L. Geng
                                                            China Mobile
                                                               G. Mishra
                                                            Verizon Inc.
                                                        October 10, 2020

   Use of BIER IPv6 Encapsulation (BIERv6) for Multicast VPN in IPv6
                                networks
                      draft-xie-bier-ipv6-mvpn-03

Abstract

   This draft defines the procedures and messages for using Bit Index
   Explicit Replication (BIER) for Multicast VPN Services in IPv6
   networks using the BIER IPv6 encapsulation.  It provides a migration
   path for Multicast VPN service using BIER MPLS encapsulation in MPLS
   networks to multicast VPN service using BIER IPv6 encapsulation
   (BIERv6) in IPv6 networks.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
   document are to be interpreted as described in [RFC2119] and
   [RFC8174].

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

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Internet-Draft                 BIERv6 MVPN                  October 2020

   This Internet-Draft will expire on April 13, 2021.

Copyright Notice

   Copyright (c) 2020 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
   (https://trustee.ietf.org/license-info) in effect on the date of
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Use of PTA and Prefix-SID Attribute in x-PMSI A-D Routes  . .   4
   4.  MVPN over BIERv6 Core . . . . . . . . . . . . . . . . . . . .   4
   5.  GTM over BIERv6 Core  . . . . . . . . . . . . . . . . . . . .   6
   6.  Data Plane  . . . . . . . . . . . . . . . . . . . . . . . . .   7
     6.1.  Encapsulation of Multicast Traffic  . . . . . . . . . . .   7
     6.2.  MTU . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
     6.3.  TTL . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   9
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .   9
     10.1.  Normative References . . . . . . . . . . . . . . . . . .   9
     10.2.  Informative References . . . . . . . . . . . . . . . . .  11
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  11

1.  Introduction

   Bit Index Explicit Replication (BIER) [RFC8279] is an architecture
   that provides optimal multicast forwarding without requiring
   intermediate routers to maintain any per-flow state by using a
   multicast-specific BIER header.  BIERv6 refers to the deployment of
   BIER in IPv6 networks using the BIER IPv6 encapsulation format
   defined in [I-D.xie-bier-ipv6-encapsulation].

   This document describes a method to realize MVPN services using BIER
   as a P-tunnel in the IPv6 Networks (BIERv6 Networks).  It defines a
   method to use an IPv6 address, called Src.DTx in this document, as

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