METHOD AND SYSTEM FOR PERFORMANCE EVALUATION IN COMMUNICATION NETWORKS, RELATED NETWORK AND COMPUTER PROGRAM PRODUCT THEREFOR

A system for evaluating performance of a network providing communication services by means of a generalized processor sharing packet scheduling discipline. The services may include classes of services having real time and non real time (i.e. “elastic”) requirements, respectively, and the classes of services have relative priorities. The system includes a performance evaluation module configured for evaluating performance of a given class of services as a function of the load produced by other classes of services having a priority higher than or equal to the given class as well as of perturbation effect exerted on the given class by other classes having priority higher than the given class, and a computation module configured for determining the load and the perturbation effect as weighed sums of the contributions of each of the other classes to the load and the perturbation effect.