Fast-multicast parallel-Banyan based ATM switch

A newly high performance ATM switch, called fast multicast parallel-Banyan switch, has been introduced for handling multirate traffic and higher bit rate services required for ATM cell processing specially in the case of bursty data. The architecture is based on several key principles: non-blocking, self-routing, output queuing for delay and throughput enhancement, levels of service priority required for maintaining QoS, high level of parallelism for achieving scalability, reliability and higher speed, and multicast function with efficient use of bandwidth. The switch is modeled analytically and simulated. The experiment results are similar to the analytical results. The tandem-Banyan multicast switch is also analytically modeled. The switch performance is evaluated in terms of cell loss probability, speed, delay, and maximum number of transmitted multicast cells in a time slot then it is compared with similar designs based on different approaches: tandem-Banyan, Clos network and multicast tree. The switch is found to be of similar or less cell loss probability and delay but it provides a higher bit rate services independently form the multicast load.