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| 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. |
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| Keywords:Satellite communication; Mega-scale satellite network; Routing overhead measurement; Satellite network routing simulation |
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