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FlowVisor‐based cost‐aware VN embedding in OpenFlow networks

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  • Xuxia Zhong
  • Ying Wang
  • Xuesong Qiu
  • Wenjing Li

Abstract

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

Suggested Citation

  • Xuxia Zhong & Ying Wang & Xuesong Qiu & Wenjing Li, 2016. "FlowVisor‐based cost‐aware VN embedding in OpenFlow networks," International Journal of Network Management, John Wiley & Sons, vol. 26(5), pages 373-395, September.
    • Handle: RePEc:wly:intnem:v:26:y:2016:i:5:p:373-395
    DOI: 10.1002/nem.1940
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    References listed on IDEAS

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    1. Hamada Alshaer, 2015. "An overview of network virtualization and cloud network as a service," International Journal of Network Management, John Wiley & Sons, vol. 25(1), pages 1-30, January.
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