Research of the application of management technologies in computer networks

DOI: 10.31673/2412-9070.2022.032225

Abstract

Management in computer networks is carried out at different levels, depending on the needs of organizations, therefore this work considers the issue of using management technologies in a computer network. A computer network is defined. Control theory is described. An overview of available management methods was conducted. The principle of the negative feedback control system, which isused to maintain the process variable at a set value, is considered. Stages of the control cycle, types of control cycles, advantages of closed loop over open loop controllers, classification of general approaches in control theory are defined. Control theory deals with the control of dynamical systems in engineered processes and machines. The objective is to develop a model or algorithm governing the application of system inputs to drive the system to a desired state, while minimizing any delay, overshoot, or steady-state error and ensuring a level of control stability; often with the aim to achieve a degree of optimality. To do this, a controller with the requisite corrective behavior is required. This controller monitors the controlled process variable (PV), and compares it with the reference or set point (SP). The difference between actual and desired value of the process variable, called the error signal, or SP-PV error, is applied as feedback to generate a control action to bring the controlled process variable to the same value as the set point. Other aspects which are also studied are controllability and observability. Control theory is used in control system engineering to design automation that have revolutionized manufacturing, aircraft, communications and other industries, and created new fields such as robotics. To overcome the limitations of the open-loop controller, control theory introduces feedback. A closed-loop controller uses feedback to control states or outputs of a dynamical system. Its name comes from the information path in the system: process inputs have an effect on the process outputs, which is measured with sensors and processed by the controller; the result (the control signal) is «fed back» as input to the process, closing the loop.

Keywords: computer network; management methods; network management cycle; principles of management methods; stages of the management cycle.

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