Use of BIER IPv6 Encapsulation (BIERv6) for Multicast VPN in Non-MPLS IPv6 networks
draft-xie-bier-ipv6-mvpn-00

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Last updated 2019-03-11
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Network Working Group                                             J. Xie
Internet-Draft                                                M. McBride
Intended status: Standards Track                             S. Dhanaraj
Expires: September 12, 2019                          Huawei Technologies
                                                                 L. Geng
                                                            China Mobile
                                                          March 11, 2019

 Use of BIER IPv6 Encapsulation (BIERv6) for Multicast VPN in Non-MPLS
                             IPv6 networks
                      draft-xie-bier-ipv6-mvpn-00

Abstract

   This draft defines the procedures and messages for using Bit Index
   Explicit Replication (BIER) for Multicast VPN Services in Non-MPLS
   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 Non-MPLS 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
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   Internet-Drafts are draft documents valid for a maximum of six months
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   This Internet-Draft will expire on September 12, 2019.

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Copyright Notice

   Copyright (c) 2019 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
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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 . . . . . . . . . . . . . . . . . . . .   5
   5.  GTM over BIERv6 Core  . . . . . . . . . . . . . . . . . . . .   7
   6.  Data Plane  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     6.1.  Encapsulation of Multicast Traffic  . . . . . . . . . . .   8
     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 . . . . . . . . . . . . . . . . .  10
   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 Non-MPLS IPv6 networks using the BIER IPv6 encapsulation
   format defined in [I-D.xie-bier-ipv6-encapsulation].

   SRv6 explained in [I-D.ietf-spring-segment-routing] refers to the
   deployment of segment routing in Non-MPLS IPv6 networks.
   [I-D.filsfils-spring-srv6-network-programming] introduces the Network
   programming concepts in SRv6 networks and explains how the 128-bit
   IPv6 address can be used as SRv6 SID in the format LOC:FUNCT, where

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