Architecture and implementation of the reliable router

Abstract The Reliable Router (RR) is a network switching element targeted to two-dimensional mesh interconnection network topologies. It is designed to run at 100 MHz and reach a useful link bandwidth of 3.2 Gbitlsec. The Reliable Router uses adaptive routing coupled with link-level retransmission and a unique-token protocol to increase both performance and reliability. The RR can handle a single node or link failure anywhere in the network without in terruption of service. Other unique features include a queueless low-latency plesiochronous channel inter face and simultaneous bidirectional signalling.