Queue management scheme stabilizing buffer utilization in the IP router

Authors:
Yusuke Shinohara;Norio Yamagaki;Hideki Tode;Koso Murakami
Affiliations:
Department of Information Networking, Graduate School of Information Science and Technology, Osaka University;Department of Information Networking, Graduate School of Information Science and Technology, Osaka University;Department of Information Networking, Graduate School of Information Science and Technology, Osaka University;Department of Information Networking, Graduate School of Information Science and Technology, Osaka University
Venue:
ICN'05 Proceedings of the 4th international conference on Networking - Volume Part II
Year:
2005

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Abstract

In the today's Internet, multimedia traffic have been increasing with the development of broadband networks. However, the Best-Effort service used in the IP network has trouble guaranteeing QoS for each user. Therefore, the realization of QoS guarantees becomes a very important issue. So far, we have proposed a new queue management scheme, called DMFQ (Dual Metrics Fair Queueing), to improve fairness and to guarantee QoS. DMFQ can improve fairness and throughput considering the amount of instantaneous and historical network resources consumed per flow. In addition, DMFQ has high-speed and high-scalability mechanism since it is hardware-oriented. However, DMFQ may be unable to adapt to fluctuations of networks due to its static set-up parameters. In this paper, we extend DMFQ to solve the above problem. This extended DMFQ stabilizes buffer utilization by controlling its parameter. Thus, it can dynamically adapt to various network conditions, which leads to the stability of queueing delay and the realization of QoS guarantee.