Abstract: This article surveys some interconnection networks, especially rings, utilized in broadband switching and compares their transfer delay performance. Special attention is paid to a ring, named Frame Synchronized Ring (FSR), which is developed for high speed switching and experimented as an ATM-switch. The study concentrates on analysing the transfer delay performance of the switching architectures to compare the rings with the other introduced switch structures (i.e. multidrop bus, crossbar, and multistage banyan network). The analysis is followed by some characteristics and experiments with the FSR.