Patent ID: 8402129

Claim:
A method for monitoring usage of resources allocated to a plurality of nodes of a network, comprising the steps of: assigning a parameter to each of a plurality of nodes of the network, wherein each parameter is indicative of a rate of change of usage of said resources of the node; locally monitoring, at each of the nodes, the rate of change of the usage of said resources of the node; reporting to a centralized management station of the network when the rate of change of the usage of the resources of one of the nodes exceeds a first threshold; initiating a poll of resources of nodes of the network by the centralized management station in response to reporting from the node or a time interval being exceeded; determining whether a sum of the currently reported rates of change of usage of node resources, received in response to the poll initiated by the management station, exceeds a second threshold; and generating an alarm if the sum of the currently reported rates of change of usage of node resources exceeds the second threshold, else updating the time interval.