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Journal of Electrical and Computer Engineering
Volume 2017 (2017), Article ID 2363240, 11 pages
Research Article

Leveraging Fog Computing for Scalable IoT Datacenter Using Spine-Leaf Network Topology

1Department of Mechatronics Engineering, Federal University of Technology Owerri, Ihiagwa, Nigeria
2Department of Electrical and Electronic Engineering, Federal University of Technology Owerri, Ihiagwa, Nigeria

Correspondence should be addressed to K. C. Okafor

Received 13 July 2016; Accepted 2 April 2017; Published 24 April 2017

Academic Editor: Raj Senani

Copyright © 2017 K. C. Okafor et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


With the Internet of Everything (IoE) paradigm that gathers almost every object online, huge traffic workload, bandwidth, security, and latency issues remain a concern for IoT users in today’s world. Besides, the scalability requirements found in the current IoT data processing (in the cloud) can hardly be used for applications such as assisted living systems, Big Data analytic solutions, and smart embedded applications. This paper proposes an extended cloud IoT model that optimizes bandwidth while allowing edge devices (Internet-connected objects/devices) to smartly process data without relying on a cloud network. Its integration with a massively scaled spine-leaf (SL) network topology is highlighted. This is contrasted with a legacy multitier layered architecture housing network services and routing policies. The perspective offered in this paper explains how low-latency and bandwidth intensive applications can transfer data to the cloud (and then back to the edge application) without impacting QoS performance. Consequently, a spine-leaf Fog computing network (SL-FCN) is presented for reducing latency and network congestion issues in a highly distributed and multilayer virtualized IoT datacenter environment. This approach is cost-effective as it maximizes bandwidth while maintaining redundancy and resiliency against failures in mission critical applications.