Software-Defined Networking Security Threats, Solutions, and Real-World Applications: A Survey

Software Defined Networking (SDN) is the most advanced technique of the recent era. It provides reliability, flexibility and logical centralization in terms of network control. SDN has the capacity to adapt according to the operating environment. It has a centralized and cost effective architecture, which is capable of providing good network visibility. This not only increases resource utilization, but also boosts performance. The pervasive existence and increase in smart programmable devices has given birth to SDN security, energy, efficiency and network visualization. SDN has successfully countered security threats and attacks. A survey has been included that defines different strategies implemented during the process. We discuss the main ongoing research efforts, challenges, and research trends in this specific field in order to forecast the future evolution of this new paradigm. To summarise, readers can delve deeper and gain a better understanding of the SDN structure, architecture, security threats, and countermeasures.