BIER Use Cases
draft-ietf-bier-use-cases-04

Document Type Active Internet-Draft (bier WG)
Last updated 2017-01-08
Replaces draft-kumar-bier-use-cases
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Network Working Group                                           N. Kumar
Internet-Draft                                                  R. Asati
Intended status: Informational                                     Cisco
Expires: July 12, 2017                                           M. Chen
                                                                   X. Xu
                                                                  Huawei
                                                             A. Dolganow
                                                          Alcatel-Lucent
                                                           T. Przygienda
                                                                Ericsson
                                                                A. Gulko
                                                         Thomson Reuters
                                                             D. Robinson
                                                       id3as-company Ltd
                                                                 V. Arya
                                                             DirecTV Inc
                                                              C. Bestler
                                                                 Nexenta
                                                         January 8, 2017

                             BIER Use Cases
                   draft-ietf-bier-use-cases-04 .txt

Abstract

   Bit Index Explicit Replication (BIER) is an architecture that
   provides optimal multicast forwarding through a "BIER domain" without
   requiring intermediate routers to maintain any multicast related per-
   flow state.  BIER also does not require any explicit tree-building
   protocol for its operation.  A multicast data packet enters a BIER
   domain at a "Bit-Forwarding Ingress Router" (BFIR), and leaves the
   BIER domain at one or more "Bit-Forwarding Egress Routers" (BFERs).
   The BFIR router adds a BIER header to the packet.  The BIER header
   contains a bit-string in which each bit represents exactly one BFER
   to forward the packet to.  The set of BFERs to which the multicast
   packet needs to be forwarded is expressed by setting the bits that
   correspond to those routers in the BIER header.

   This document describes some of the use-cases for BIER.

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

Kumar, et al.             Expires July 12, 2017                 [Page 1]
Internet-Draft               BIER Use Cases                 January 2017

   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
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   This Internet-Draft will expire on July 12, 2017.

Copyright Notice

   Copyright (c) 2017 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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   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Specification of Requirements . . . . . . . . . . . . . . . .   3
   3.  BIER Use Cases  . . . . . . . . . . . . . . . . . . . . . . .   3
     3.1.  Multicast in L3VPN Networks . . . . . . . . . . . . . . .   3
     3.2.  BUM in EVPN . . . . . . . . . . . . . . . . . . . . . . .   4
     3.3.  IPTV and OTT Services . . . . . . . . . . . . . . . . . .   5
     3.4.  Multi-service, converged L3VPN network  . . . . . . . . .   6
     3.5.  Control-plane simplification and SDN-controlled networks    7
     3.6.  Data center Virtualization/Overlay  . . . . . . . . . . .   7
     3.7.  Financial Services  . . . . . . . . . . . . . . . . . . .   8
     3.8.  4k broadcast video services . . . . . . . . . . . . . . .   9
     3.9.  Distributed Storage Cluster . . . . . . . . . . . . . . .  10
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