The Performance Study of Interconnected Heterogeneous Networks using Simulations

A Local Area Network simulation package SIMLAN has been developed to model and simulate large networks having many heterogeneous LAN segments interconnected by routers or bridges. The package is written in FORTRAN 77. It supports Token-Ring, CSMA/CD and a more recently proposed Ring/Bus protocol based networks with some of their variations. Both bridges and routers are modelled with the assumption that the packets going through them do not suffer from processing delay and there is adequate buffer for all newly arriving and backlogged packets waiting for their turn to get transmitted. A user interface is also provided to help configure the desired interconnected network for simulation runs.