Applicability of BIER Multicast Overlay for Adaptive Streaming Services
draft-ietf-bier-multicast-http-response-00

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Last updated 2019-02-12
Replaces draft-purkayastha-bier-multicast-http-response
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Network Working Group                                     D. Purkayastha
Internet-Draft                                                 A. Rahman
Intended status: Informational          InterDigital Communications, LLC
Expires: August 12, 2019                                      D. Trossen
                                                InterDigital Europe, Ltd
                                                               T. Eckert
                                                                  Huawei
                                                        February 8, 2019

Applicability of BIER Multicast Overlay for Adaptive Streaming Services
               draft-ietf-bier-multicast-http-response-00

Abstract

   HTTP Level multicast, using BIER, is described as a use case in BIER
   Use cases document.  HTTP Level Multicast is used in today's video
   streaming and delivery services such as HLS, AR/VR etc., generally
   realized over IP Multicast.  A realization of "HTTP Multicast" over
   "IP Multicast" is described.  IP multicast is commonly used for IPTV
   services.  DVB and BBF is also developing a reference architecture
   for IP Multicast service.  A few problems with IPMC, such as waste of
   transmission bandwidth, increase in signaling when there are few
   users are described.  Realization over BIER, through a BIER Multicast
   Overlay Layer, is described.  How BIER Multicast Overlay operation
   improves over IP Multicast, such as reduction in signaling, dynamic
   creation of multicast groups to reduce signaling and bandwidth
   wastage is described.  We conclude with few next steps.

Status of This Memo

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   This Internet-Draft will expire on August 12, 2019.

Purkayastha, et al.      Expires August 12, 2019                [Page 1]
Internet-Draft   Applicability of BIER Multicast Overlay   February 2019

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Reference Deployment  . . . . . . . . . . . . . . . . . .   3
   2.  Conventions used in this document . . . . . . . . . . . . . .   5
   3.  Use cases . . . . . . . . . . . . . . . . . . . . . . . . . .   5
   4.  Requirements  . . . . . . . . . . . . . . . . . . . . . . . .   6
   5.  Realization over IP Multicast . . . . . . . . . . . . . . . .   6
     5.1.  Mapping to Requirements . . . . . . . . . . . . . . . . .   7
     5.2.  Problems  . . . . . . . . . . . . . . . . . . . . . . . .   8
   6.  Realization over BIER . . . . . . . . . . . . . . . . . . . .   8
     6.1.  Description of a "BIER Multicast Overlay" to support HTTP
           Multicast . . . . . . . . . . . . . . . . . . . . . . . .   9
       6.1.1.  BIER Multicast Overlay Components . . . . . . . . . .   9
       6.1.2.  BIER Multicast Overlay Operations . . . . . . . . . .  10
     6.2.  Achieving Multicast Responses . . . . . . . . . . . . . .  12
     6.3.  BIER multicast Overlay Traffic Management . . . . . . . .  13
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
   8.  Security Considerations . . . . . . . . . . . . . . . . . . .  13
   9.  Informative References  . . . . . . . . . . . . . . . . . . .  14
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  15

1.  Introduction

   BIER Use Cases document [I-D.ietf-bier-use-cases] describes an "HTTP
   Level Multicast" scenario, where HTTP Responses are carried over a
   BIER multicast infrastructure to multiple clients.  Especially rate-
   adaptive HTTP solutions can benefit from the dynamic multicast group
   membership changes enabled by BIER.  For this, the "server side NAP
   (Network Attachment Point), creates a list of outstanding client side
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