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This paper describes RAON which is a novel solution for tackling scalability in OpenFlow networks. This approach recursively abstracts its underlying networks as OpenFlow switches to reduce complexity and to increase manageability. The design and early prototype of RAON shows very promising and graceful use cases of various scenarios.
In software defined networking (SDN), a controller acts as the "brain," providing a centralized view of the whole network. Through the controller, the network can be quickly and easily programmed and managed. Consequently, the importance of an SDN controller's performance is significant. In SDN controllers, high performance has two aspects: fast response… (More)
— Data centers are a key component in cloud computing. Network performance within a data center accounts for a significant portion of application performance. Conventional TCP protocols are not adequate for data center applications and often waste network resources. Several researchers proposed new TCP protocols to resolve congestion caused by incast… (More)
Software defined networking (SDN) has created new opportunities for both the research community and the net-working industry, but SDN also has created new challenges. One of the most fundamental SDN security issues we have observed is the absence of data plane authentication. We present a definition of this problem and a controller and switch design called… (More)