| 分组失序影响TCP传输性能仿真分析 |
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| 引用本文： | 司晓鲁,王建新,顾晓鸣.分组失序影响TCP传输性能仿真分析[J].解放军理工大学学报,2005,6(3):237-240. |
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| 作者姓名： | 司晓鲁 王建新 顾晓鸣 |
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| 作者单位： | 解放军理工大学,通信工程学院,江苏,南京,210007;总参第61研究所,北京,100039 |
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| 摘 要： | 尽管TCP协议是一种面向连接的、可靠的传输控制协议，但是分组失序还是会对TCP传输性能产生严重影响。并行交换和较高的网络负载是导致分组失序现象大量涌现的根本原因，提出并实现了一个具有并行交换功能的仿真系统，对分组失序触发快速重传和快速恢复操作、抑制拥塞窗口增长过程进行了仿真。结果表明，TCP协议将分组失序误认为分组丢失是导致其传输性能下降的主要原因。
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| 关 键 词： | 并行交换系统 分组失序 传输控制协议 |
| 文章编号： | 1009-3443(2005)03-0237-04 |
| 修稿时间： | 2004年10月10 |
Simulation of packet reordering effect on TCP performance |
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| SI Xiao-lu,WANG Jian-xin and GU Xiao-ming.Simulation of packet reordering effect on TCP performance[J].Journal of PLA University of Science and Technology(Natural Science Edition),2005,6(3):237-240. |
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| Authors: | SI Xiao-lu WANG Jian-xin and GU Xiao-ming |
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| Institution: | SI Xiao-lu~1,WANG Jian-xin~2,GU Xiao-ming~2 |
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| Abstract: | Although TCP was a reliable transport mechanism; packet reordering aff ected its performance. The fundamental causes of packet reordering wer e parallel packet switch system and high-level traffic load. A model of packet paral lel swi tching system was presented to simulate how packet reordering depresses TCP cong estion window growth and degrades its performance. The simulations show that th e misinterpreting of out-of-order delivery as packet loss is the primary cau se for TCP performance degradation. |
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| Keywords: | packet para llel switching packet reordering TCP(transmission control protocol) |
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