Unfairness of assured service and a rate adaptive marking strategy

Authors:
Seung-Joon Seok;Sung-Hyuck Lee;Seok-Min Hong;Chul-Hee Kang
Affiliations:
Department of Electronics Engineering, Korea University, Seoul, Korea;Network Protocol T.G., i-Networking Lab., Samsung Advanced Institute of Technology, Yongin-shi, Kyungki-do, Korea;Department of Electronics Engineering, Korea University, Seoul, Korea;Department of Electronics Engineering, Korea University, Seoul, Korea
Venue:
QofIS'02/ICQT'02 Proceedings of the 3rd international conference on quality of future internet services and internet charging and QoS technologies 2nd international conference on From QoS provisioning to QoS charging
Year:
2002

Citing 4
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Abstract

Assured Service, which is a service model of the Internet Differentiated Services (DiffServ) architecture is not currently well implemented on the Internet, mainly because TCP employs an AIMD (Additive Increase and Multiplicative decrease) mechanism to control congestion. In this paper, we analyze the problem and describe a marking rule, called RAM (Rate Adaptive Marking), which diminishes the problem. The RAM method marks sending packets, at a source node or at an edge router, in inverse proportion to throughput gain and in proportion to the reservation rate and throughput dynamics. We also discuss methods to implement the RAM strategy. Several experiments with the ns- 2 simulator are performed to evaluate the RAM scheme.