• Ayman Haggag
• Hoda Youssef
• Ihab Ali
• Fatty M. Salem

Software-Defined Networking (SDN) is a computer network that promises to enhance the infrastructure and architecture of networks. SDN depends mainly on decoupling the control plane from the data plane. In SDN, the control plane is implemented outside the forwarding element (OpenFlow switch). The SDN controller is considered the basic component in the SDN architecture, which can represent the control plane of a network. Hence, SDN has many advantages over traditional networks due to the centralization of a network’s control plane in addition to supporting network programmability. SDN is capable of enhancing network manageability, configuration, and troubleshooting. However, SDN can suffer from many network security attacks and threats. Therefore, protecting the SDN architecture from attacks is a demanding and urgent issue. Hence, in this research, we review security requirements for in SDN and countermeasures that defend the SDN controller.

Network Security, Software Defined Networking, SDN Structure.

"Security Overview of Software Defined Networks: Threats and Countermeasures", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.9, Issue 5, page no.c348-c355, May-2022, Available :http://www.jetir.org/papers/JETIR2205252.pdf

"Security Overview of Software Defined Networks: Threats and Countermeasures", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.9, Issue 5, page no. ppc348-c355, May-2022, Available at : http://www.jetir.org/papers/JETIR2205252.pdf