| WSAP： provide loss rate differentiation with active queue management |
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| 引用本文： | 章淼 WuJianping XuKe.WSAP： provide loss rate differentiation with active queue management[J].高技术通讯(英文版),2005,11(2):118-123. |
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| 作者姓名： | 章淼 WuJianping XuKe |
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| 作者单位： | DepartmentofComputerScienceandTechnology,TsinghuaUniversity,Beijing100084,P.R.China |
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| 基金项目： | SupportedbytheHighTechnologyResearchandDevelopmentProgrammeofChina(No.2001AA121013)andtheNationalNaturalScienceFoundationofChina(No.90104002). |
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| 摘 要： | How to provide service differentiation in the Intemet is a hot research topic. One proposal is to provide loss rate differentiation by assigning levels of drop precedence to IP packets. This paper proposes a new Active Queue Management (AQM) mechanism, Weighted SAP (WSAP) to achieve this goal. WSAP is based on a new AQM algorithm called Simple Adaptive Proportional (SAP). WSAP can approximate proportional loss rate differentiation, while keeping high link utilization and short queuing delay. Compared with Weighted RED(WRED) and RED In and Out (RIO), WSAP is easier to configure and can provide better performance. Furthermore, an architecture for differentiated service is proposed. In the design of this architecture, more attention is paid to the characteristics of network traffic in the lntemet and an attempt is made to preserve the Intemet‘s original design principles.
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| 关 键 词： | WSAP 因特网 网络管理 损失率比较 IP协议 |
WSAP: provide loss rate differentiation with active queue management |
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| Zhang Miao,Wu Jianping,Xu Ke.WSAP: provide loss rate differentiation with active queue management[J].High Technology Letters,2005,11(2):118-123. |
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| Authors: | Zhang Miao Wu Jianping Xu Ke |
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| Abstract: | How to provide service differentiation in the Internet is a hot research topic. One proposal is to provide loss rate differentiation by assigning levels of drop precedence to IP packets. This paper proposes a new Active Queue Management (AQM) mechanism, Weighted SAP (WSAP) to achieve this goal. WSAP is based on a new AQM algorithm called Simple Adaptive Proportional (SAP). WSAP can approximate proportional loss rate differentiation, while keeping high link utilization and short queuing delay. Compared with Weighted RED(WRED) and RED In and Out (RIO), WSAP is easier to configure and can provide better performance. Furthermore, an architecture for differentiated service is proposed. In the design of this architecture, more attention is paid to the characteristics of network traffic in the Internet and an attempt is made to preserve the Internet's original design principles. |
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| Keywords: | Weighted Simple Adaptive Proportional (WSAP) Active Queue Management (AQM) loss rate differentiation |
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