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