IoT Edge Challenges and Functions
draft-irtf-t2trg-iot-edge-01
Network Working Group J. Hong
Internet-Draft ETRI
Intended status: Informational Y-G. Hong
Expires: 3 May 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
30 October 2020
IoT Edge Challenges and Functions
draft-irtf-t2trg-iot-edge-01
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
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on 3 May 2021.
Hong, et al. Expires 3 May 2021 [Page 1]
Internet-Draft IoT Edge Computing October 2020
Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/
license-info) in effect on the date of publication of this document.
Please review these documents carefully, as they describe your rights
and restrictions with respect to this document. Code Components
extracted from this document must include Simplified BSD License text
as described in Section 4.e of the Trust Legal Provisions and are
provided without warranty as described in the Simplified BSD License.
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
Show full document text