Design of SDN security application and its impact on the network performance

Abstract

The birth of real-time applications, video transmission, the massifcation of social networks, the introduction of cloud computing and many other services have resulted in the exponential growth of traffc on the telecommunications networks. Consequently, it is necessary to change the way of communication in the current networks to new methods that provide greater network intelligence. This is how the concept of Software Defned Networks (SDN) is born which is revolutionizing the feld of communications by controlling the device of the network from external software with the help of Openflow protocol specially created for this purpose. It will be the SDN applications running on the network controller that will control the behavior of the device. The application that is exposed in this paper is an example of this. This application allows to control the access of the users to the network resources, and improving network security. In addition it has been verifed its impact on the performance of the network in terms of latency and throughput. The experiments have been carried out in the Mininet emulator and POX controller. The test platform developed in the work together with the application created evidences the potential of the SDN. Finally, the impact of the security application in the network when using active and proactive methods is compared.