Shapovalova A. Secure and fault-tolerant flow-based routing model with load balancing in soft-ware-defined telecommunication networks

The object – the processes of security and fault-tolerant routing with load balancing in software-defined telecommunication networks. The goal – increasing the level of fault tolerance and network security in software-defined telecommunication networks. The subject of research – mathematical models of security and fault-tolerant routing with load balancing in software-defined telecommunication networks. Research methods – operations research apparatus and set theory, graph theory, elements of risk theory, methods of linear and quadratic programming. Results – the flow-based routing model has been improved, taking into account information security risks using base score metrics of criticality vulnerabilities; the flow-based model of secure routing with load balancing under network security parameters in software-defined telecommunication networks has been improved; for the first time, a model of fast rerouting with load balancing based on the principles of Traffic Engineering and differentiated traffic policing in software-defined telecommunication networks has been proposed; the flow-based secure fast rerouting model with load balancing and differentiated traffic policing in software-defined telecommunication networks has been improved. Implementation – in the educational process of the Department of Infocommunication Engineering V.V. Popovsky in Kharkiv National University of Radio Electronics in a lecture courses and practical classes on disciplines of «Information Security in Information and Communication Systems» and «Control and Routing in Telecommunication Systems»; at the enterprises of "KhDRNTC TZI", in LLC "WorkNest" and enterprise private joint-stock company "Farlep-Invest". The field of use is telecommunication systems and networks.