超大规模卫星网络路由收敛开销测量及分析
Measurement and Analysis of Route Convergence Overhead in Mega-scale Satellite Constellation
摘要
在卫星网络中,星间链路总是在变化,这使得OSPF协议产生的开销成为影响卫星网络性能的关键因素。超大规模卫星网络的网络性能研究是一个全新的领域。因此,本文基于小规模卫星网络测试的网络性能,预测了大规模卫星网络中ISL断开后的收敛时间。实验测试台基于Linux docker搭建,并使用数据包捕获程序捕获数据包。为了更好地观察和计数,实验过程中仅设置一个链接断开,然后计算收敛时间和开销大小。最后,根据多个拟合函数提供了路由收敛时间和卫星规模的拟合曲线,分析了开销中各部分的大小和数量关系,并观察了洪泛时延对网络服务的影响,同时,还观察了泛洪时每颗卫星的负载情况。
Abstract
In a satellite network, the ISLs(Inter-Satellite Links) are always changing, so the overhead generated by the OSPF protocol has always been the key to affecting the performance of the satellite network. The research on network performance of mage-scale satellite networks is a new field. Therefore, based on the network performance tested from the small-scale satellite networks, this paper predicts the convergence time after an ISL is disconnected in the mage-scale satellite network. The experimental testbed is built based on Linux docker, and the packet capture program is used to capture data packets. For better observation and statistics, only one link is set to be disconnected during the experiment, and then the route convergence time and the size of overhead are counted. Finally, we give some fitting curves of routing convergence time and satellite scale which are based on multiple fitting functions, analyze the size of each part in the overhead and the quantitative relationship between each part, and observe the delay when flooding affects network services. At the same time, we also observe the load of each satellite during the flooding.关键词
卫星通信/超大规模卫星网络/路由开销测量/卫星网络路由仿真Key words
Satellite communication/Mega-scale satellite network/Routing overhead measurement/Satellite network routing simulation引用本文复制引用
卢诚承.超大规模卫星网络路由收敛开销测量及分析[EB/OL].(2023-03-15)[2026-04-02].http://www.paper.edu.cn/releasepaper/content/202303-170.学科分类
通信/无线通信/航天
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