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MODELING OF ETHERNET NETWORKS IN OMNET ++ INET FRAMEWORK MEDIUM

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 Subject of Research. The paper considers one of the possible approaches to the study of Ethernet networks by simulating them in the OMNeT ++ environment with the use of the INET framework. The possibility of studying network models is shown in both the step-by-step execution mode and the mode of obtaining generalized statistical characteristics of their operation. Method. When presenting the proposed approach, the method of sequential complication of network models was used, taking into account the features of existing standard protocols and network implementations. The simplicity of the proposed approach is shown, which is based on a wide range of ready-made components for the description of various network elements within the INET framework. This fact gives the possibility to form quite complex network models by means of only the graphic editor and the built-in NED network description language. A brief description of INET framework main components is given that makes it possible to form the structure of the network under research in the graphical editing mode. Main Result. The paper presents technique for creation of network simulation models with a sufficiently detailed description of the main modeling stages. The simplest methods for launching the network model into work and analyzing the results are considered. The work shows the possibility of creating custom component modules in the INET framework projects, which, being ready-made components, can be used in models of more complex network structures. Based on the generated approach, models were built of both basic and mixed Ethernet topologies that gave the possibility to carry out a sufficiently detailed analysis for each of these topologies. Practical Relevance. The described toolkit makes it possible to carry out research on the justification of design solutions for design of distributed computer networks, as well as for creation of tools supporting the automated design of infocommunication systems and networks.

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