Multi-stage switching networks with overflow links for a single call class

Abstract

This article proposes a new analytical model of a multi-stage switching network with a system of overflow links in the first stage of the network. The initial assumption in the study was that the system of overflow links would be used by one class of calls. The article presents the dependencies between the internal blocking probability and the capacity of the overflow link. The results of the analytical calculations are then compared with the results of the simulations of multi-stage switching networks. The present study has confirmed fair accuracy of the proposed method and proved the validity of the implementation of overflow links in switching networks.