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In terms of network security, software-defined networks (SDN) offer researchers unprecedented control over network infrastructure and define a single point of control over the data flows routing of all network infrastructure. OpenFlow protocol is an embodiment of the software-defined networking paradigm. OpenFlow network security applications can implement more complex logic processing flows than their permission or prohibition. Such applications can implement logic to provide complex quarantine procedures, or redirect malicious network flows for their special treatment. Security detection and intrusion prevention algorithms can be implemented as OpenFlow security applications, however, their implementation is often more concise and effective. In this paper we considered the algorithm of the information security management system based on soft computing, and implemented a prototype of the intrusion …