Optimized RIO for DiffServ Networks

Abstract

Even though Differentiated Services with Assured Forwarding provide bandwidth and other guarantees, the equilibrium queue size of the router depends on network conditions as well as network settings. The queuing delay guarantees are not possible with the present framework. Also the absence of priority flows in networks affects the utilization of the router. We propose the Optimized RIO algorithm as an alternative Adaptive Queuing Mechanism over the DiffServ router, which dynamically changes the parameter settings for efficient usage. The optimization algorithm used is presented. A proof of convergence of the algorithm is also given. Simulation results are presented for validation of our approach. Optimized RIO is found to show better performance than traditional RIO.