Abstract
RIO(RED with IN and OUT) is the primary queue management mechanism proposed for assured forwarding in the DiffServ (Differentiated Service) framework. Although RIO can generally provide bandwidth guarantees, its queuing delay is sensitive to the traffic load. This paper presents a qualitative explanation for its origin. As a solution, an Adaptive RIO for Delay (ARIO-D) is proposed to provide guaranteed delay for multimedia traffic. Simulation results show that by trading loss for delay, ARIO-D can effectively improve the robustness of RIO under different and dynamic traffic, and provide stable and differentiated performance of queuing delay without any degradation in performance of throughput.
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Supported by the National Natural Science Foundation of China(No.60202005) and the Foundation for University Key Teacher by the Ministry of Education in P.R.China, and also supported in part by the Australian Research Council (No.LX0240468).
Communication author: Liu Wei, born in 1977, male, Ph.D. candidate. Department of Electronics and Information Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
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Yang, Z., Liu, W., He, J. et al. An adaptive AQM to provide delay guarantees for differentiated services. J. of Electron.(China) 22, 619–631 (2005). https://doi.org/10.1007/BF02687843
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DOI: https://doi.org/10.1007/BF02687843