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地震 ›› 2001, Vol. 21 ›› Issue (4): 75-79.

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改善VSAT卫星链路网际互联的技术途径

唐迎欣, 周肃敏   

  1. 中国地震局分析预报中心,北京 100036
  • 收稿日期:2001-06-21 修回日期:2001-07-03 出版日期:2001-10-31 发布日期:2022-06-02
  • 作者简介:唐迎欣(1962-),男,广东中山人,工程师,主要从事卫星网络管理。
  • 基金资助:
    “九五”中国地震局卫星数据通信网建设专项(95-02)

A technical approach to improve networking efficiency using VSAT links

TANG Ying-xin, ZHOU Su-min   

  1. Center for Analysis and Prediction, CSB, Beijing 100036, China
  • Received:2001-06-21 Revised:2001-07-03 Online:2001-10-31 Published:2022-06-02

PDF (PC)

146

摘要： 在卫星通信网上运行TCP/IP协议时,因电波空间传播产生的卫星链路时延,严重降低了TCP协议数据流的传输速率和通信效率。选择适当的TCP数据流发送窗口值,不能从根本上提高TCP数据流的传输速率。对于采用卫星通信链路作为传输信道的计算机广域网,在卫星站网关上使用TCP“协议欺骗”技术,能够显著提高TCP/IP协议在卫星通信网上运行的效率。文中给出了采用TCP/IP“协议欺骗”后实测的结果。

关键词: 卫星通信, TCP/IP, 协议欺骗

Abstract: In running TCP/IP protocol on satellite communication network, the time delay of satellite links caused by radio wave propagation in space will seriously reduce the transfer speed and communication efficiency of TCP data streams. Choosing proper sending window size of TCP data streams is not able to increase transfer speed of TCP data streams at all. The application of spoofing technology in TCP protocol at gateways of satellite earth stations is able to increase the running efficiency of TCP protocol and transfer speed of data steams on satellite communication network for WAN using satellite links as communication channels. The experimental results are given for TCP running after applying spoofing technology in using TCP/IP protocol also.

Key words: Satellite communication, TCP/IP, Spoofing protocol

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