Patent ID: 6396808
Filing Date: 2002-05-28
Classification: H04L,H04Q

Abstract:
A signal processing method of an ATM switching network to which a plurality of ATM switching systems are connected, said signal processing method comprising the steps of:upon occurrence of an overload state in a call processing processor of a certain ATM switching system (switching system A) included in a network, informing another ATM switching system (switching system B) of the overload state in the call processing processor; then performing setting so as to transfer cells of a new signal channel arriving at the switching system A to the switching system B; then making the switching system B exercise route control over cells of an information channel in the switching system A, establishment of the information channel being needed by the new signal channel; then making the switching system B conduct a part of signal processing of the switching system A as a substitute, and thereby distributing load of signal processing in the ATM switching network.