Encapsulation for BIER in Non-MPLS IPv6 Networks
draft-xie-bier-ipv6-encapsulation-00

Document Type Active Internet-Draft (individual)
Last updated 2019-03-07
Replaces draft-xie-bier-6man-encapsulation
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Network Working Group                                             J. Xie
Internet-Draft                                       Huawei Technologies
Intended status: Standards Track                                 L. Geng
Expires: September 9, 2019                                  China Mobile
                                                              M. McBride
                                                             S. Dhanaraj
                                                                  G. Yan
                                                                  Y. Xia
                                                                  Huawei
                                                           March 8, 2019

            Encapsulation for BIER in Non-MPLS IPv6 Networks
                  draft-xie-bier-ipv6-encapsulation-00

Abstract

   This document proposes a BIER IPv6 (BIERv6) encapsulation for Non-
   MPLS IPv6 Networks using the IPv6 Destination Option extension
   header.

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
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   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
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   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on September 9, 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
   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
   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  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  BIER IPv6 Encapsulation . . . . . . . . . . . . . . . . . . .   3
     3.1.  BIER Option in IPv6 Destination Options Header  . . . . .   3
     3.2.  Multicast and Unicast Destination Address . . . . . . . .   6
     3.3.  BIERv6 Packet Format  . . . . . . . . . . . . . . . . . .   7
   4.  BIERv6 Packet Processing  . . . . . . . . . . . . . . . . . .   8
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   6.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
     6.1.  BIER Option Type  . . . . . . . . . . . . . . . . . . . .  10
     6.2.  BIER Multicast Address  . . . . . . . . . . . . . . . . .  10
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  10
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  10
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .  10
     8.2.  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.

   [RFC8296] defines a common BIER Header format for MPLS and Non-MPLS
   networks.  It has defined two types of encapsulation methods using
   the common BIER Header, (1) BIER encapsulation in MPLS networks,
   here-in after referred as MPLS BIER Header in this document and (2)
   BIER encapsulation in Non-MPLS networks, here-in after referred as
   Non-MPLS BIER Header in this document.  [RFC8296] also assigned

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   Ethertype=0xAB37 for Non-MPLS BIER Header packets to be directly
   carried over the Ethernet links.

   This document proposes a BIER IPv6 encapsulation for Non-MPLS IPv6
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