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Sustainability 2017, 9(12), 2382;

Cloud-Centric and Logically Isolated Virtual Network Environment Based on Software-Defined Wide Area Network

Advanced Research Networking Center, Korea Institute of Science and Technology Information, Daejeon 34141, Korea
School of Information Technology Engineering, Daegu Catholic University, Gyeongsan 38430, Korea
Author to whom correspondence should be addressed.
Received: 15 November 2017 / Revised: 9 December 2017 / Accepted: 15 December 2017 / Published: 20 December 2017
(This article belongs to the Collection Advanced IT based Future Sustainable Computing)
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Recent development of distributed cloud environments requires advanced network infrastructure in order to facilitate network automation, virtualization, high performance data transfer, and secured access of end-to-end resources across regional boundaries. In order to meet these innovative cloud networking requirements, software-defined wide area network (SD-WAN) is primarily demanded to converge distributed cloud resources (e.g., virtual machines (VMs)) in a programmable and intelligent manner over distant networks. Therefore, this paper proposes a logically isolated networking scheme designed to integrate distributed cloud resources to dynamic and on-demand virtual networking over SD-WAN. The performance evaluation and experimental results of the proposed scheme indicate that virtual network convergence time is minimized in two different network models such as: (1) an operating OpenFlow-oriented SD-WAN infrastructure (KREONET-S) which is deployed on the advanced national research network in Korea, and (2) Mininet-based experimental and emulated networks. View Full-Text
Keywords: SDN; SD-WAN; virtualization; cloud SDN; SD-WAN; virtualization; cloud

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Kim, D.; Kim, Y.-H.; Kim, K.-H.; Gil, J.-M. Cloud-Centric and Logically Isolated Virtual Network Environment Based on Software-Defined Wide Area Network. Sustainability 2017, 9, 2382.

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