Performance analysis of the counters-based modified traffic conditioner in a DiffServ network

The counter-based modified (CBM) traffic conditioner was presented in a previous work as a feasible election for the assured service implementation with Diffserv. In this work, we evaluate the end-to-end performance of TCP Reno sources with the CBM traffic conditioner in topologies with one and three networks nodes under miscellaneous characteristics, i.e. variable contracted target rates and roundtrip times. In addition and for the same scenarios, the robustness of the couple CBM-RIO is tested when assured service and best-effort sources coexist and compete target bandwidths and even allocation of spare bandwidth across different flows can be provided as shown in simulation results.