A seven-dimensional state flow traffic modelling for multi-controller Software-Defined Networks considering multiple switches
Software-Defined Networking (SDN) improves flexibility in network management and programmability through decoupling the control and the data planes. In SDN, traffic analysis and modelling are important for tracking network activity and availability to detect abnormalities, such as security and operational problems. In this paper, a seven-dimensional state model is used to model SDN TCP and UDP flows, unlike other models that are used in previous work which use three or four-dimensional states. We formulate seven-dimensional states with transitions which consider flow-level arrivals to get more accurate knowledge about modelling the SDN traffic. The proposed work uses multiple controllers and multiple switches with limited capacities unlike other models in related work which may use one controller or switch with an infinite buffer. Using multiple controllers improves the security of the network, due to the
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