Institute of Electrical and Electronics Engineers (IEEE)

The Controller Placement of Software-Defined Networks Based on Minimum Delay and Load Balancing

Peiying Tao ¹

Zhe Sun ²

Pan Wang ²

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National Engineering Laboratory for Logistics Information, Technology YuanTong Express, Shanghai, China |

School of Modern Posts & Institute of Modern Posts, Nanjing University of Posts and Telecommunications, Nanjing, China |

Publication type: Proceedings Article

Publication date: 2018-08-01

Institute of Electrical and Electronics Engineers (IEEE)

DOI: 10.1109/DASC/PiCom/DataCom/CyberSciTec.2018.00059

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Abstract

Software Defined Network (SDN) separates control plane from data plane, and uses multiple controllers to resolve the extensibility and security of SDN. However, most research concentrates on the control layer architecture, ignoring the controllers placement problem. In this paper, we first define the total flow request cost that considers switch weights, switch-to-controller routing costs, and inter-controller routing costs. Next, we propose controller-based load balance factor, with a known number of controllers, the position of the specific controllers is derived by minimizing the linear function of the load balance factor and the total flow request cost. Finally, through simulation, the controller layout scheme reduces the flow request cost of the SDN and achieves load balancing among the controllers.

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Institute of Electrical and Electronics Engineers (IEEE)