| 复杂拓扑下UDP流对TCP流影响的分析 |
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| 引用本文： | 肖扬,王磊.复杂拓扑下UDP流对TCP流影响的分析[J].软件,2010,31(10):1-5. |
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| 作者姓名： | 肖扬 王磊 |
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| 作者单位： | [1]北京交通大学计算机与信息技术学院,北京100044 [2]爱立信（中国）通信有限公司,北京100016 |
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| 基金项目： | 国家自然科学基金-韩国自然科学基金国际合作课题，国家教育部博士点基金 |
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| 摘 要： | 随着Internet的发展,UDP数据流日益增大,而传统的主动拥塞控制不能很好地处理UDP流。本文通过计算机首先模拟了在瓶颈网络和传统的RED算法下UDP流和TCP流共存的情况,然后又模拟了在复杂拓扑下主动管理算法的稳定性,说明了无拥塞控制的UDP数据流同TCP流共享带宽时的不公平性,并通过分析TCP的端到端流量控制机制指出了产生不公平的原因,讨论了解决该问题的方法。
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| 关 键 词： | TCP协议 拥塞控制 主动队列管理 UDP协议 |
Analysis of the UDP Flow's Effect on TCP Flow Based on Complex Topologies |
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| XIAO Yang,WANG Lei.Analysis of the UDP Flow's Effect on TCP Flow Based on Complex Topologies[J].Software,2010,31(10):1-5. |
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| Authors: | XIAO Yang WANG Lei |
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| Affiliation: | School of Computer and Information Technology,Beijing Jiaotong University,Beijing 100044 |
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| Abstract: | With the development of Internet,UDP flow is increasing rapidly.The traditional congestion control can＇ t handle UDP flow well.First of all,this paper makes a simulation on the unfairness in bandwidth sharing between UDP flow without congestion control and TCP flow based on bottleneck network and classical RED algorithm.Then it makes a simulation on the stability of AQM based on complex topologies.It gets the causes of this unfairness by analyzing the end-to-end flow control mechanism of TCP.At the end,it draws the conclusion and the prospect of solutions to this problem. |
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| Keywords: | TCP Congestion control Active Queue Management（AQM） UDP |
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