ABSTRACT

This chapter discusses simulation program simulating a slotted packet switch fabric in the condition in which a packet is always present at every switch fabric input in every slot. In any case, the packets will have all the length of a single slot and when they arrive at a switch fabric input; their output destination is random, with all the output ports having the same probability. The element on the simulation, routing through the switch fabric, is performed by evaluating all the available paths for all the packets directed toward the same output in the same time slot and choosing randomly both the packet to transmit and the path among those available. Another important distinction is based on the strategy to manage packets that arrive in front of a full queue coming from the remote source. In order to evaluate the performance of a crossbar switch fabric, the chapter explores how packets are stored when arriving at the fabric.