| SUPANET中多粒度服务质量保障机制研究 |
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| 引用本文： | 高雨,曾华燊,窦军. SUPANET中多粒度服务质量保障机制研究[J]. 铁道学报, 2011, 0(9): 50-54 |
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| 作者姓名： | 高雨 曾华燊 窦军 |
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| 作者单位： | 西南交通大学信息科学与技术学院 |
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| 基金项目： | 国家自然科学基金项目(60773102,U0970122) |
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| 摘 要： | 下一代互联网NGI (Next Generation Internet)既需要为单个业务连接提供细粒度的服务质量QoS(Quality of Service),又需要为一类业务流提供粗粒度的QoS.针对这种多粒度的QoS保障需求,在分析单物理层用户数据传输与交换平台体系结构SUPA(Single physical la...
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| 关 键 词： | 下一代互联网 SUPANET 服务质量 虚通道 自适应算法 |
Research on Multi-granularity QoS Guarantee Mechanism in SUPANET |
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| GAO Yu,ZENG Hua-shen,DOU Jun. Research on Multi-granularity QoS Guarantee Mechanism in SUPANET[J]. Journal of the China railway Society, 2011, 0(9): 50-54 |
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| Authors: | GAO Yu ZENG Hua-shen DOU Jun |
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| Affiliation: | (School of Information Sciences and Technologies,Southwest Jiaotong University,Chengdu 610031,China) |
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| Abstract: | The Next Generation Internet(NGI) must provide not only fine granularity Quality of Service(QoS) guarantee to a single flow,but also coarse granularity QoS guarantee to a class of flow.To meet the need of NGI in multi-granularity QoS guarantee,this paper describes the original QoS guarantee mechanism of SUPA(Single physical layer User-data transfer & switching Platform Architecture) and proposes an Internet traffic oriented multi-granularity QoS guarantee framework in SUPA.In this framework,a mapping method between Internet traffic and the multi-granularity Virtual Tunnel(VT) is proposed,and an adaptive quota algorithm of thick VT is designed.At last,the effectiveness of the algorithm is proved by simulation.Simulation results show that the adaptive quota algorithm can improve the quota utilization rate of single thick VT and the resources utilization rate of the whole network in comparision with the fixed quota algorithm. |
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| Keywords: | NGI SUPANET QoS virtual tunnel adaptive algorithm |
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