Operational Considerations for Streaming Media
draft-jholland-mops-taxonomy-02

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MOPS                                                          J. Holland
Internet-Draft                                 Akamai Technologies, Inc.
Intended status: Informational                                  A. Begen
Expires: 16 August 2020                                  Networked Media
                                                              S. Dawkins
                                                     Tencent America LLC
                                                        13 February 2020

             Operational Considerations for Streaming Media
                    draft-jholland-mops-taxonomy-02

Abstract

   This document provides an overview of operational networking issues
   that pertain to quality of experience in delivery of video and other
   high-bitrate media over the internet.

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   This Internet-Draft will expire on 16 August 2020.

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Holland, et al.          Expires 16 August 2020                 [Page 1]
Internet-Draft             Media Streaming Ops             February 2020

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Venues for Contribution and Discussion  . . . . . . . . .   3
   2.  Bandwidth Provisioning  . . . . . . . . . . . . . . . . . . .   3
     2.1.  Scaling Requirements for Media Delivery . . . . . . . . .   3
       2.1.1.  Video Bitrates  . . . . . . . . . . . . . . . . . . .   3
       2.1.2.  Virtual Reality Bitrates  . . . . . . . . . . . . . .   4
     2.2.  Path Requirements . . . . . . . . . . . . . . . . . . . .   4
     2.3.  Caching Systems . . . . . . . . . . . . . . . . . . . . .   5
     2.4.  Predictable Usage Profiles  . . . . . . . . . . . . . . .   5
     2.5.  Unpredictable Usage Profiles  . . . . . . . . . . . . . .   5
   3.  Adaptive Bitrate  . . . . . . . . . . . . . . . . . . . . . .   6
     3.1.  Overview  . . . . . . . . . . . . . . . . . . . . . . . .   6
     3.2.  Segmented Delivery  . . . . . . . . . . . . . . . . . . .   7
       3.2.1.  Idle Time between Segments  . . . . . . . . . . . . .   7
       3.2.2.  Head-of-Line Blocking . . . . . . . . . . . . . . . .   7
     3.3.  Unreliable Transport  . . . . . . . . . . . . . . . . . .   8
   4.  Doc History and Side Notes  . . . . . . . . . . . . . . . . .   8
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   9
   8.  Informative References  . . . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  10

1.  Introduction

   As the internet has grown, an increasingly large share of the traffic
   delivered to end users has become video.  Estimates put the total
   share of internet video traffic at 75% in 2019, expected to grow to
   82% by 2022.  What's more, this estimate projects the gross volume of
   video traffic will more than double during this time, based on a
   compound annual growth rate continuing at 34% (from Appendix D of
   [CVNI]).

   In many contexts, video traffic can be handled transparently as
   generic application-level traffic.  However, as the volume of video
   traffic continues to grow, it's becoming increasingly important to
   consider the effects of network design decisions on application-level
   performance, with considerations for the impact on video delivery.

   This document aims to provide a taxonomy of networking issues as they
   relate to quality of experience in internet video delivery.  The
   focus is on capturing characteristics of video delivery that have