Importance

Loading Importance Indicators...

Abstract

A service control point (24) includes an overload control system (50) that determines an overload rating (70) for an intelligent processing unit (82). The overload control system (50) includes a latency estimator (52) that requests and receives a latency (66) for a service logic interpreter (62). A queue depth store (54) receives a queue depth (68) from the service logic interpreter (62). A common memory (56) stores the latency (66) and the queue depth (68) in memory mapped files. A load estimator (58) determines the overload rating (70) in response to the latency (66) and the queue depth (68). The load estimator (58) compares the overload rating (70) to a previous overload rating and issues an internal problem report if a difference is detected. A TCAP interface (60) and a service logic program (64) assess the overload rating (70) to determine if incoming service requests should be passed on to the service logic interpreter (62), rerouted, or discarded. The load estimator (58) provides the overload rating (70) to an overload server (84). The overload server (84) determines a system wide overload rating in response to the overload rating (70) received from a plurality of intelligent processing units (82). The overload server (84) compares the system wide overload rating to a previous system wide overload rating and, upon detecting a difference, issues an internal problem report and provides the new system wide overload rating to a provisioning system (100).

Loading the Abstract Image...

First Claim