Gateway performance analysis in interconnected networks

Abstract

The performance of interconnected networks is highly dependent on the performance of the gateways. Since the finite storage capability of gateways affects the throughput it has to be considered for the analysis of interconnected networks. Different configurations of networks are studied: (i) gateways and the channels of local area networks have no buffer capacity constraints; (ii) only gateways have buffer capacity constraints; (iii) only the channels of local area networks have buffer capacity constraints; (iv) both gateways and the channels of the local area networks have buffer capacity constraints, (iv) both gateways and the channels of the local area networks have buffer capacity constraints. An approximation method is introduced which allows computation of the throughput for the above network configurations. Examples are given to demonstrate the impact of gateway buffer capacity on the performance of the network. Approximate results are compared and validated by simulation.