Agent Approach to Network Systems Experimental Analysis in Case of Critical Situations

Abstract

Paper presents the analysis and discussion of the network systems in case of the critical situation that happens during ordinary work. The formal model is proposed with the approach to its modeling based on the system behavior observation. The agent approach to constant network monitoring is given using hierarchical structure. The definition of the critical situation sets are created by reliability, functional and human reasons. The proposed method is based on specified description languages that can be seen as a bridge between system description and an analysis tools. Using a multilevel-agent based architecture the realistic data are collected. Analysis is done with a usage of open-source simulation environment that can be easily modified and extended for further work. Based on the simulation results, some alternatives can be chosen in case of system or service failure. This way it is possible to operate with large and complex networks described by various - not only classic – distributions and set of parameters. The presented problem is practically essential for organization of network systems.