中国空间科学技术（中英文）2024，Vol.44Issue(6)：122-131,10.DOI:10.16708/j.cnki.1000-758X.2024.0097
大规模低轨卫星网络流量监测方法
A method of traffic monitoring for large-scale LEO satellite networks
摘要
Abstract
Aiming at the inflexiability of network traffic monitoring and tardy response to network emergencies for LS-LEO(large-scale low earth orbit)satellite networks,a method of network traffic monitoring for LS-LEO satellite networks based on INT(in-band network telemetry)is proposed.In order to reduce the overhead of LS-LEO satellite networks traffic monitoring,the proposed method combines the high dynamic topology characteristics of LEO satellite networks,and provides aggregation node selection of network traffic monitoring information within each domain of LEO satellite networks and leader node selection based on microburst traffic,which realizes the rapid monitoring and reporting for abnormal state information of network traffic.In the domain-based aggregation node selection strategy,the aggregation node is obtained by calculating the shortest path and delay.The microburst node is monitored by the telemetry information reporting strategy of the leader node,and the telemetry information is directly reported by the node to the aggregation node.The simulation results show that,compared with the traditional traffic monitoring method,the proposed method can effectively reduce the overhead of telemetry packets and realize flexible low-overhead monitoring of bursts in traffic.Taking the LEO satellite network scale of 500 nodes as an example,the average telemetry overhead for a flow with a path length of 7 hops can be reduced by 27.77%.关键词
低轨卫星/流量监测/带内遥测/汇聚策略/节点选择Key words
low earth orbit satellite/traffic monitoring/in-band network/aggregation strategy/node selection分类
信息技术与安全科学引用本文复制引用
李德军,刘志慧,张乙凡,王俊义,金世超,董涛..大规模低轨卫星网络流量监测方法[J].中国空间科学技术（中英文）,2024,44(6):122-131,10.基金项目
国家重点研发计划资助项目(2021YFB2900604) （2021YFB2900604）
青年人才托举工程(2022QNRC001) （2022QNRC001）
