Design and analysis of the high-performance interconnected Banyan switching fabric (IBSF)

This paper presents a novel MIN with multiple outlets called the Interconnected Banyan Switching Fabric (IBSF). A MIN with multiple outlets provides multiple paths to the same destination so that it can support more bandwidth than nonblocking networks. The IBSF consists of several banyan networks interconnected among them. The IBSF provides L-(N/2) paths between a source and a destination where L is the number of banyan networks and N is the size of the network. The throughput of the IBSF is analyzed with an analytical model as well as simulations and is compared with other types of MINs with multiple outlets such as Tandem Banyan Switching Fabric (TBSF) and Piled Banyan Switching Fabric (PBSF). We show that the IBSF provides the best throughput and latency. The suitability of the IBSF as an ATM switch has also been studied and its throughput is analyzed.