ATM multiplex apparatus and congestion reporting method

摘要

A congestion control method and apparatus that conducts congestion control for a frame relay terminal in real time and without any time lag when a congestion has occurred at an outgoing cell store medium of a fast multiplex unit of an ATM multiplex apparatus. The fast multiplex unit of the ATM multiplex apparatus is provided with a outgoing cell store medium monitor unit monitoring a congestion level of the outgoing cell store medium and generating a congestion reporting signal indicative of the congestion level and a light/heavy congestion indication signal. The time lag which occurs when the congestion reporting is made is eliminated by sending both signals directly to a frame relay interface control unit from the fast multiplex unit.