BIER Use Cases
draft-ietf-bier-use-cases-11
Network Working Group N. Kumar
Internet-Draft R. Asati
Intended status: Informational Cisco
Expires: September 5, 2020 M. Chen
X. Xu
Huawei
A. Dolganow
Nokia
T. Przygienda
Juniper Networks
A. Gulko
Thomson Reuters
D. Robinson
id3as-company Ltd
V. Arya
DirecTV Inc
C. Bestler
Nexenta
March 4, 2020
BIER Use Cases
draft-ietf-bier-use-cases-11.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 September 5, 2020 [Page 1]
Internet-Draft BIER Use Cases March 2020
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This Internet-Draft will expire on September 5, 2020.
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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. Broadcast, Unknown unicast and Multicast (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 . . . . . . . . . . . 8
3.7. Financial Services . . . . . . . . . . . . . . . . . . . 8
3.8. 4K Broadcast Video Services . . . . . . . . . . . . . . . 9
3.9. Distributed Storage Cluster . . . . . . . . . . . . . . . 10
3.10. Hyper Text Transfer Protocol (HTTP) Level Multicast . . . 11
4. Security Considerations . . . . . . . . . . . . . . . . . . . 13
5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 13
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