Importance

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Abstract

A method and arrangement for preventing an overload in a node of a telecommunications network, the network including at least one service node and at least one other node connected to the at least one service node, by the steps of: receiving, 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 containing 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 the information changes; and restricting the number of service requests transmitted to the at least one service node from the at least one other node. The step of transmitting the restriction requests includes transmitting restriction requests in response to a predetermined proportion of the total number of the received service request messages fulfilling a predetermined criterion, by defining for each individual one of the received service requests a predetermined probability of triggering a transmission of a restriction request, so that a total number of the transmitted restriction requests is smaller than the total number of received service requests.

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First Claim