Virtualization in openflow networks
Keywords:
FlowVisor, OpenFlow, SDN, virtualizationAbstract
Network virtualization allows network resources to be shared, by dividing them and creating individual networks, which can operate independently of each other. This paper describes FlowVisor, as a tool for network virtualization. FlowVisor is a special purpose controller, which enables virtualization in OpenFlow networks, by dividing a physical network into multiple logical networks. It ensures that each virtual network uses only its own resources. The paper provides brief overview of the OpenFlow technology, and FlowVisor’s role in it. Furthermore, it is given a short insight into FlowVisor basic work principles and main goals which it has to accomplish, as well as the explanation how it provides virtualization of the network resources. We have implemented FlowVisor in our OpenFlow testbed, and demonstrated its ability to provide coexistence of multiple virtual networks in one physical network.
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