BIER IPv6 Requirements
draft-ietf-bier-ipv6-requirements-09

Document Type Active Internet-Draft (bier WG)
Authors Mike McBride  , Jingrong Xie  , Xuesong Geng  , Senthil Dhanaraj  , Rajiv Asati  , Yongqing Zhu  , Gyan Mishra  , Zhaohui Zhang 
Last updated 2020-09-28
Replaces draft-mcbride-bier-ipv6-requirements
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Network Working Group                                         M. McBride
Internet-Draft                                                 Futurewei
Intended status: Informational                                    J. Xie
Expires: April 1, 2021                                           X. Geng
                                                             S. Dhanaraj
                                                                  Huawei
                                                                R. Asati
                                                                   Cisco
                                                                  Y. Zhu
                                                           China Telecom
                                                               G. Mishra
                                                            Verizon Inc.
                                                                Z. Zhang
                                                                 Juniper
                                                      September 28, 2020

                         BIER IPv6 Requirements
                  draft-ietf-bier-ipv6-requirements-09

Abstract

   There have been several proposed solutions with BIER being used in
   IPv6.  But there hasn't been a document which describes the problem
   and lists the requirements.  The goal of this document is to describe
   the general BIER IPv6 encapsulation problem and detail solution
   requirements, thereby assisting the working group in the development
   of acceptable solutions.

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."

   This Internet-Draft will expire on April 1, 2021.

McBride, et al.           Expires April 1, 2021                 [Page 1]
Internet-Draft           BIER IPv6 Requirements           September 2020

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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements Language . . . . . . . . . . . . . . . . . .   3
     1.2.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Problem Statement . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Requirements  . . . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Mandatory Requirements  . . . . . . . . . . . . . . . . .   4
       3.1.1.  Support various L2 link types . . . . . . . . . . . .   4
       3.1.2.  Support BIER architecture . . . . . . . . . . . . . .   4
       3.1.3.  Support deployment with Non-BFR routers . . . . . . .   4
       3.1.4.  Support OAM . . . . . . . . . . . . . . . . . . . . .   5
     3.2.  Optional Requirements . . . . . . . . . . . . . . . . . .   5
       3.2.1.  Support Fragmentation . . . . . . . . . . . . . . . .   5
       3.2.2.  Support IPSEC ESP . . . . . . . . . . . . . . . . . .   5
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   6.  Acknowledgement . . . . . . . . . . . . . . . . . . . . . . .   6
   7.  Normative References  . . . . . . . . . . . . . . . . . . . .   6
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   Bit Index Explicit Replication (BIER) [RFC8279] is an architecture
   that provides optimal multicast forwarding, without requiring
   intermediate routers to maintain per-flow state, through the use of a
   multicast-specific BIER header.  [RFC8296] defines two types of BIER
   encapsulation: one is BIER MPLS encapsulation for MPLS environments,
   the other is non-MPLS BIER encapsulation to run without MPLS.  This
   document describes non-MPLS BIER encapsulation in IPv6 environments.
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