In this paper we use jump process driven Stochastic Differential Equations to model the interactions of a set of TCP flows and Active Queue Management routers in a network setting. We show how the SDEs can be transformed into a set of Ordinary Differential Equations which can be easily solved

response time to data plane requests. HyperFlow is resilient to network partitioning and component failures. It also enables interconnecting independently managed OpenFlow networks, an essential feature missing in current OpenFlow deployments. We have implemented HyperFlow as an application for NOX. Our

We describe the implementation of an OpenFlow Switch on the NetFPGA platform. OpenFlow is a way to deploy experimental or new protocols in networks that carry production traffic. An OpenFlow network consists of simple flow-based switches in the datapath, with a remote controller to manage several

in software-defined networks. To effectively address the practical challenges of these networks the researchers have developed an open standard called OpenFlow. With OpenFlow firmware installed on routers and switches, users can use software to tap into flow tables and control a network's layout

Abstract—OpenFlow is an important element for achieving Software Defined Networking (SDN) and is expected to be an enabler that solves the problems of today’s network. Thanks to the centralized management with OpenFlow, agile network operation can be achieved with flexible programmability; how

, ranging from the Ethernet layer to the network layer and above. This makes SDN a versatile approach for a large number of applications. However, little is known about the power consumption of SDN-enabled networking devices, especially OpenFlow switches. This paper presents measurements and derived power

OpenFlow is a great concept, but its original design imposes excessive overheads. It can simplify network and traffic management in enterprise and data center environments, because it enables flow-level control over Ethernet switching and provides global visibility of the flows in the network

shows how this architecture can be further improved by introducing the OpenFlow architecture and implementing the OpenFlow controller as a NetServ service, thus improving both the NetServ management performance and its flexibility. These achievements are demonstrated experimentally on the GENI

-level interface to their configuration via the OpenFlow protocol. In this paper we discuss how OpenFlow can be leveraged by DRE middleware to automatically provide performance guarantees. In order to make the discussion concrete, we describe the

Abstract—The OpenFlow framework allows the data plane of a network switch to be managed by a software-based controller. This enables a software-defined networking model in which so-phisticated network management policies can be deployed. In this paper, we present an FPGA-based switch which is fully