University of Peloponnese
Network virtualization gives each \"Tenant\" in a data center its own network topology and control over the flow of its traffic. By offering a standard interface between controller applications and switch forwarding tables, Software Defined Networking (SDN) is a natural platform for network virtualization. Yet, supporting a large number of tenants with different topologies and controller applications raises scalability challenges. In this paper, the authors present the FlowN architecture, which provides each tenant the illusion of its own address space, topology, and controller.