Cross point switch with distributed control

摘要

A communications network including several ports where each port is connected to at least one data processing system element. The ports are interconnected by an information bus. Additionally, the ports are connected to a matrix switch that has the capability of providing a direct communications channel between any two of the ports. Each port includes control circuitry for communicating with other ports over the bus and through the bus, regulating the matrix switch in order for the matrix switch to provide the direct communication channels between two ports.