Performance analysis of shared-buffered banyan networks under arbitrary traffic patterns

The performance of multistage banyan networks with a shared buffer in each switching element is studied. Two different internal protocols are considered for the transfer of packets from stage to stage based on the presence or absence of interstage backpressure signals to signal the occurrence of buffer saturation conditions. As far as the offered traffic is concerned, two kinds of traffic patterns have been studied, a burst and an unbalanced traffic pattern. For both of them an analytical model is developed based on the iterative solution of state equations in order to compute the main traffic performance of the network