A Three-Color Marking Mechanism for Fairness Improvement in the Assured Service of the Diffserv Network

차등 서비스 네트워크의 확신 서비스에서 공평성 향상을 위한 3색 마킹 메커니즘

  • 모상덕 (광운대학교 전자통신공학과) ;
  • 정광수 (광운대학교 전자공학부)
  • Published : 2003.12.01

Abstract

Previous works for the assured service in the Diffserv network have no sufficient consideration on the fairness of bandwidth share based on RTTs and the target rates of TCP flows. In this paper, in order to solve these problems, we propose a TRA3CM(Target rate and RTT Aware 3 Color Marking) mechanism. The TRA3CM mechanism provides three color marking and fair transmission rates among aggregate flows by considering RTT and target rate simultaneously. In case of higher target rate than bottleneck bandwidth, the TRA3CM mechanism is able to mitigate the RTT effect and provides fair transmission rates. In the results of comparing the performance among existing mechanisms and the TRA3CM, the TRA3CM mechanism was able to mitigate the RTT effect better than the former. The TRA3CM is shown to provide good performance for transmission rates proportional to various target rates.

References

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