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Software-Defined Network (SDN) is a perception of networking that separates the network into different layers responsible for applications, control, and data, thus providing a flexible and programmable architecture and making the network more reliable. However, from this centralization of network management, one of the main threats to SDNs remains Denial of Service and Distributed Denial of Service (DoS/DDoS) attacks, which are ever more developed and sophisticated nowadays.

Despite the several works found in this field, notably reviews and surveys, and given the significant recourse for using SDNs, at the same time, the expansion of DoS/DDoS attacks, which are increasingly imposing and destructive. We believe that a good understanding of DoS/DDoS attacks will help us confront these cyber threats to better counter them according to the SDN context.

This paper aims to analyze the DoS/DDoS attacks …