November 2018
Intermediate to advanced
382 pages
11h 20m
English
Content preview from Practical Internet of Things Security - Second Edition
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The concept of the fog
Another edge computing facet of an IoT system architecture is known as the fog. The OpenFog Consortium released in 2017 a reference architecture (https://www.openfogconsortium.org/wp-content/uploads/OpenFog_Reference_Architecture_2_09_17-FINAL.pdf), in which they defined fog computing as:
A horizontal, system-level architecture that distributes computing, storage, control, and network functions closer to the users along a cloud-to-thing continuum.
Fog nodes are, as you would expect, placed nearer to edge devices in an IoT architecture. This allows for data analytics nearer the edge, and decision-making with minimized latency (minimized reach-back to the cloud).
Of course, the cloud still plays a role in these architectures, ...
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