Security of software defined networks: evolution and challenges

<span>In software-defined networking (SDN), network traffic is managed by software controllers or application programming interfaces (APIs) rather than hardware components. It differs from traditional networks, which use switches and routers to control traffic. Using SDN, you can create virtual networks networks. Furthermore, OpenFlow allows administrators exact behavior through centralized of packet forwarding. For these reasons, SDN has advantages over certain security issues, unlike However, most the existing vulnerabilities threats in also impact network. This document presents attacks targeting solutions that protect against attacks. In addition, we introduce a variety controls, such as intrusion detection systems (IDS)/intrusion prevention system (IPS), firewalls. Towards end, outline conclusion perspectives.</span>