Patent ID: 6018519
Filing Date: 2000-01-25
Classification: H04L,H04Q

Abstract:
A method of preventing an overload in a node of a telecommunications network, the network comprising at least one service node and at least one other node connected to the at least one service node, said method comprising the steps ofreceiving, at the at least one service node, service requests from the at least one other node connected to the at least one service node,transmitting restriction requests from the at least one service node to the at least one other node connected thereto, each restriction request comprising information on how the at least one other node should restrict the number of service requests the at least one other node transmits towards the at least one service node,transmitting a new restriction request at least whenever said information changes,restricting the number of service requests transmitted to the at least one service node from the at least one other node,said step of transmitting said restriction requests comprising transmitting restriction requests in response to a predetermined proportion of the total number of the received service requests fulfilling a predetermined criterion, by defining for each individual one of said received service requests a predetermined probability of triggering a transmission of a restriction request, so that a total number of said transmitted restriction requests is smaller than the total number of said received service requests.