FlowVisor-based cost-aware VN embedding in OpenFlow networks
作者： Xuxia Zhong , Ying Wang , Xuesong Qiu , Wenjing Li
DOI: 10.1002/NEM.1940
关键词:
摘要: Software-defined network has emerged as a promising technology to simplify the management and enable innovation through programmability. With help of FlowVisor, virtualization is achieved in software-defined networks. We mainly focus on investigating how embed virtual requests with different sizes small, regular, large cost-efficient way. However, features FlowVisor limitations OpenFlow switches, such presence central controller, limited flow space resource, out-of-band bandwidth requirement, bring new challenges. In this paper, we first formulate FlowVisor-enabled cost-aware embedding issue an integer linear programming problem. Then, propose two algorithms: heuristic algorithm LF-OVNE meta-heuristic CA-CVNC-EPSO. Meanwhile, separate step taken select controller for each slice. Finally, evaluate our algorithms compare performance existing algorithms. The simulation results show that perform online more Copyright © 2016 John Wiley & Sons, Ltd.
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