IoT Edge Challenges and Functions
draft-irtf-t2trg-iot-edge-00

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Last updated 2020-08-31
Replaces draft-hong-t2trg-iot-edge-computing
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Network Working Group                                            J. Hong
Internet-Draft                                                      ETRI
Intended status: Informational                                 Y-G. Hong
Expires: 4 March 2021                               Tongmyong University
                                                               X. de Foy
                                        InterDigital Communications, LLC
                                                             M. Kovatsch
                                    Huawei Technologies Duesseldorf GmbH
                                                             E. Schooler
                                                                   Intel
                                                             D. Kutscher
                               University of Applied Sciences Emden/Leer
                                                          31 August 2020

                   IoT Edge Challenges and Functions
                      draft-irtf-t2trg-iot-edge-00

Abstract

   Many IoT applications have requirements that cannot be met by the
   traditional Cloud (aka cloud computing).  These include time
   sensitivity, data volume, uplink cost, operation in the face of
   intermittent services, privacy and security.  As a result, the IoT is
   driving the Internet toward Edge computing.  This document outlines
   the requirements of the emerging IoT Edge and its challenges.  It
   presents a general model, and major components of the IoT Edge, with
   the goal to provide a common base for future discussions in T2TRG and
   other IRTF and IETF groups.

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
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   This Internet-Draft will expire on 4 March 2021.

Hong, et al.              Expires 4 March 2021                  [Page 1]
Internet-Draft             IoT Edge Computing                August 2020

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Background  . . . . . . . . . . . . . . . . . . . . . . . . .   3
     2.1.  Internet of Things (IoT)  . . . . . . . . . . . . . . . .   3
     2.2.  Cloud Computing . . . . . . . . . . . . . . . . . . . . .   4
     2.3.  Edge Computing  . . . . . . . . . . . . . . . . . . . . .   4
     2.4.  Examples of IoT Edge Computing Use Cases  . . . . . . . .   6
   3.  IoT Challenges Leading Towards Edge Computing . . . . . . . .   9
     3.1.  Time Sensitivity  . . . . . . . . . . . . . . . . . . . .   9
     3.2.  Uplink Cost . . . . . . . . . . . . . . . . . . . . . . .  10
     3.3.  Resilience to Intermittent Services . . . . . . . . . . .  10
     3.4.  Privacy and Security  . . . . . . . . . . . . . . . . . .  10
   4.  IoT Edge Computing Functions  . . . . . . . . . . . . . . . .  11
     4.1.  Overview of IoT Edge Computing Today  . . . . . . . . . .  11
     4.2.  General Model . . . . . . . . . . . . . . . . . . . . . .  12
     4.3.  OAM Components  . . . . . . . . . . . . . . . . . . . . .  16
       4.3.1.  Virtualization Management . . . . . . . . . . . . . .  16
       4.3.2.  Resource Discovery and Authentication . . . . . . . .  17
       4.3.3.  Edge Organization and Federation  . . . . . . . . . .  17
     4.4.  Functional Components . . . . . . . . . . . . . . . . . .  18
       4.4.1.  External APIs . . . . . . . . . . . . . . . . . . . .  18
       4.4.2.  Communication Brokering . . . . . . . . . . . . . . .  18
       4.4.3.  In-Network Computation  . . . . . . . . . . . . . . .  19
       4.4.4.  Edge Caching  . . . . . . . . . . . . . . . . . . . .  20
       4.4.5.  Other Services  . . . . . . . . . . . . . . . . . . .  21
     4.5.  Application Components  . . . . . . . . . . . . . . . . .  21
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