Raed Y. Models and methods of quality of service assurance in Software-Defined Networking

The object of the study is the processes of quality management services for the formation and provision of comprehensive services in SDN. Subject of research - models and methods of providing quality of service in software-configurable networks. Research methods. During the decision of the set tasks, in particular, when assessing the interaction of network elements in the process of providing comprehensive services, the position of the theory of management of multilevel systems was used; the theory of sets is used in the analysis and formation of the complex service; mass service theory and graph theory - when solving the load balancing problem in SDN network; E-network apparatus and resource allocation analysis methods - when assessing the correctness and efficiency of network resource allocation; Methods of simulation and mathematical statistics - during conducting and evaluating the results of experimental research. Theoretical and practical results: Further development has received the method of formation and management of complex service complex in the SDN network; Further development was achieved by the method of load balancing, which allows, based on the analysis of the current load both on the communication channel and the computing device, to form a data transmission route that will provide an appropriate level of service quality; Further development has received the method of structural analysis of complex services based on the device E-networks; For the first time, a method for increasing the availability of services in SDN, based on the dynamic distribution of copies of both atomic and complex services, is proposed.