Software-Defined Networking with Multiple Routing Utilizing DFS to Improving QoS

Massive advancement of network traffic has been observed lately since the significant usage of online application and cloud administration. Thus, various routing issues need to be managed without increasing the latency to ensure even traffic. Software-defined networking (SDN) is developed to address the above-mentioned issue. SDN allows the network’s programmable features and responses gradually. The suggested system addresses the concerns raised due to multipath steering through SDN. The application of OpenFlow convention and Ryu controller is done to implement SDN with the help of the Mininet-WiFi emulator. The SDN network is designed using a graphical UI program, and the module is implemented with Python programming along with OpenFlow based-Ryu controller. The breadth-first search (BFS) and depth-first search (DFS) schemes are portrayed to calculate the briefest path in the system. Finally, a round trip time (RTT) is observed to ensure the most suitable search algorithm among them to be used in the module resulting in DFS being the preferred algorithm.