Performance evaluation of RYU controller under distributed denial of service attacks

<span>Distributed denial of service (DDoS) attacks have been identified as one the greatest threats to software-defined networking (SDN) because they are highly effective, hard detect, and easy use, take advantage vulnerabilities in which new architecture still exists. This paper describes technique for denying RYU controller's services, can cause resources be depleted if a significant number packets from various zombie hosts sent controller using spoofed source internet protocol (IP) addresses. In order demonstrate impact attack, we measure metrics related controllers such its central processing unit (CPU) usage network throughput. this work, Mininet was used simulate data plane random access memory (RAM) usage, CPU load, link latency.</span>