Kryuchkova L. Management methodology for infocommunication structure-varying networks with destructive influences

This thesis solves the scientific problem of developing a management methodology for infocommunication structure-varying networks with destructive influences in order to ensure their effective functioning. This problem has scientific and practical relevance. We completed a comparative analysis of the methods for designing control systems of infocommunication networks affiliated with the global information infrastructure, which is being implemented in telecommunication networks. We developed the structure of the service management system in the infocommunication networks. Information exchange is based on the object oriented approach "Manager" - "Agent" - "Object". This structure allows us to manage a infocommunication network with a wide range of services and to meet various user requirements. We performed a selection of the main criteria that have the greatest impact on the quality of management systems of infocommunication networks. These include: the amount of control information that provides the necessary accuracy for the main parameters of managed networks; the reliability of the control information; the delay time. We proposed a method for the situational management of infocommunication structure-varying networks under deleterious conditions, based on the design of adaptive management strategy and decision-making model that account for changing trends in unmanaged and output parameters in order to ensure acceptable quality of service. We developed a methodology for the adaptive control of the network flow based on automatic network packet prioritization. This methodology involves dynamically changing network flow tables, and using a given type-of-service ToS byte for each entry. We also designed a method for the structural synthesis of the controlled object's model stemming from its decomposition.We developed a method to provide the necessary accuracy of the parameters of the managed networks, involving the calculation of the amount of control information and of the number of channels with a predetermined bandwidth in their management systems. The proposed technique, unlike the state of the art, aims to minimize the amount of control information that provides effective control over the available channel capacity. In this work, the structure and the parameters of the control system have been justified. We also improved the structure of the control system that ensures the robustness of the system to negative influences.