关键词: 虚拟局域网, 空间信息网, 协同控制, 一致性算法, 路由算法, 组网

Abstract: Basedonlongtimedelay，highdynamicnature，andlimitedresourcesofthesatellitenetwork,aspacevirtuallocalareanetwork（VLAN）divisionmethodundercooperativecontrolwasproposedtoimplementspatialinformationnetwork.Firstly，toimprovetheutilizationrateofsatellitebandwidthandcomputingresources，satellitenetworkwasdividedintoseveralVLAN.Secondly，theroutingalgorithmwascombinedwithconsistencyalgorithmtoachievehigherreliabilityinsatellites′mutualconnectionandcommunication.Whenappliedtospatialsatellitenetwork，thealgorithmcanachievestrongconnectivitybetweeneachnode；whenappliedtoasinglesatellite，itcanhelpinintraarealoadbalanceandredundantbackup.Finally,examplesweregiventodemonstratetheeffectivenessoftheproposedalgorithmforbothspacenetworkandasinglesatellite.Theresultsshowthatallsatellitescanconvergencetotheirplannedorbitin50secondsandthenetworkcanachieveastablespacestructure.

Key words: virtuallocalareanetwork, spatialinformationnetwork, cooperativecontrol, consistencyalgorithm, routingalgorithm, networking