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