Quantitative analysis of performability in voice and data networks

In this paper, we investigate the performance and dependability modeling of voice and data services in computer networks. We use Stochastic Petri Net as an enabling modeling approach for analytical evaluation of complex scenarios. Our goal is to analyze the performability of a network infrastructure, by considering the influence of queuing policies and network topologies on the quality of voice and data services. We apply our proposed modeling approach in a case study to evaluate the dependability and performability of an enterprise network.