Sufficient condition of stability in computer networks

In most articles dataflow in computer networks is described as a transfer function. Numerators, denominators and delay times give behaviors of these systems. Some systems show linear features, others have non-linear ones. All descriptions have some special results. Some of them present linear aspects of transfers, while other ones look for bottlenecks of the networks or prove stability of the systems. Since these systems have non-linear features, simulation of these systems is also difficult. The paper presents setting up a non-linear simulation model that helps to observe dataflow problems of the networks. This simple model captures the relationship among the internal traffic and the input and output dataflow. Finally conditions of stability are given for these systems.