BIER Ingress Multicast Flow Overlay using Multicast Listener Discovery Protocols
draft-ietf-bier-mld-00

Document Type Active Internet-Draft (bier WG)
Last updated 2017-06-30
Replaces draft-pfister-bier-mld
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Network Working Group                                         P. Pfister
Internet-Draft                                              IJ. Wijnands
Intended status: Standards Track                               S. Venaas
Expires: December 31, 2017                                 Cisco Systems
                                                                 C. Wang

                                                                Z. Zhang
                                                         ZTE Corporation
                                                             M. Stenberg
                                                           June 29, 2017

 BIER Ingress Multicast Flow Overlay using Multicast Listener Discovery
                               Protocols
                         draft-ietf-bier-mld-00

Abstract

   This document specifies the ingress part of a multicast flow overlay
   for BIER networks.  Using existing multicast listener discovery
   protocols, it enables multicast membership information sharing from
   egress routers, acting as listeners, toward ingress routers, acting
   as queriers.  Ingress routers keep per-egress-router state, used to
   construct the BIER bit mask associated with IP multicast packets
   entering the BIER domain.

Status of This Memo

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   This Internet-Draft will expire on December 31, 2017.

Copyright Notice

   Copyright (c) 2017 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

Pfister, et al.         Expires December 31, 2017               [Page 1]
Internet-Draft        MLD BIER ingress flow overlay            June 2017

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Overview  . . . . . . . . . . . . . . . . . . . . . . . . . .   3
   4.  Applicability Statement . . . . . . . . . . . . . . . . . . .   4
   5.  Querier and Listener Specifications . . . . . . . . . . . . .   4
     5.1.  Configuration Parameters  . . . . . . . . . . . . . . . .   5
     5.2.  MLDv2 instances.  . . . . . . . . . . . . . . . . . . . .   5
       5.2.1.  Sending Queries . . . . . . . . . . . . . . . . . . .   6
       5.2.2.  Sending Reports . . . . . . . . . . . . . . . . . . .   6
       5.2.3.  Receiving Queries . . . . . . . . . . . . . . . . . .   6
       5.2.4.  Receiving Reports . . . . . . . . . . . . . . . . . .   7
     5.3.  Packet Forwarding . . . . . . . . . . . . . . . . . . . .   7
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   7
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   8
   8.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   8
   9.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   8
     9.1.  Normative References  . . . . . . . . . . . . . . . . . .   8
     9.2.  Informative References  . . . . . . . . . . . . . . . . .   9
   Appendix A.  BIER Use Case in Data Centers  . . . . . . . . . . .   9
     A.1.  Convention and Terminology  . . . . . . . . . . . . . . .  11
     A.2.  BIER in data centers  . . . . . . . . . . . . . . . . . .  11
     A.3.  A BIER MLD solution for Virtual Network information . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   The Bit Index Explicit Replication (BIER -
   [I-D.ietf-bier-architecture]) forwarding technique enables IP
   multicast transport across a BIER domain.  When receiving or
   originating a packet, ingress routers have to construct a bit mask
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