Performance comparison of high-speed input-buffered ATM switches

In this paper, we compare several input-buffered ATM switch architectures. Before comparison, the reasons underlying the application of input-buffered ATM switches are discussed. Then, classification of the input-buffered architectures is given. Next, structures and operation of basic switching elements are presented, including the ordinary input-buffered switch, the odd-even switch, the grouped input-queued (GIQ) switch, and the random access input-buffered (RAIB) switch which we presented before. Finally, comparisons of switching performances and such issues as speed of operation, memory utilization efficiency and multicasting functions are presented.