ABSTRACT

This chapter shows that the simulation environment has the characteristic of a consumer-producer interaction. It demonstrates the evaluation of an input queuing scheme for buffer allocation and a crossbar switch for the routing control for overall Asynchronous transfer mode (ATM) switch performance. The chapter describes the queuing model which is used for the ATM traffic simulation. The quality of the simulation results is heavily influenced by the quality of the random number generator used in the ATM traffic simulator for generating ATM cell events. ATM cells are generated by the ATM traffic generator and fed into the buffer allocation simulator. The ATM traffic simulator and the buffer allocation simulator run synchronously. A cell generated by the ATM traffic simulator is processed by the buffer allocation simulator immediately within the same time slot, i. e., a cell does not experience any delay between the two simulators.