Legacy networks were operated on hardware-centric de-vices, requiring intensive human intervention to configure and maintain the network performance. Due to changing business and customer requirements, networks must be constantly modified and reconfigured to meet the changing requirements. The emergence of Software Defined Networking (SDN) architecture made networks flexible, programmable, scalable, and responsive to change, as it decoupled the logic from the data forwarding units. In particular, it decouples the control plane and the data plane. The control plane makes decisions and controls the process of packet forwarding. Whereas the data plane devices forward traffic according to predefined rules set by the controller, revolutionizing networking by allowing for centralized control. OpenFlow is a communication protocol commonly used in SDN. It allows a central controller to control network devices directly.