Adaptive ingress admission control for differentiated services

This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder.---- Copyright IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. DOI : 10.1109/ICON.2003.1266242Admission control is a critical element for supporting Quality-of-Service in networks. We propose and evaluate the performance of an adaptive ingress admission control scheme that is suitable for use in a Differentiated Services Internet backbone. The proposed scheme improves upon the admission control scheme by measuring the maximal arrival rate envelope at an ingress node and adding an adaptive adjustment scheme that dynamically adjusts the perceived network capacity in correlation with the rate at which a specified end-to-end delay bound is violated. Simulation results are presented to show that the proposed adaptive ingress admission control scheme is more effective than the egress admission control scheme