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E-LearningenvironmentnetworkWiththerapiddevelopmentofnetworktechnology,especiallydigitalcampusandtheconstructionofeducationalinformationneedsofthecampusnetworkhavebecomeincreasinglydemanding.Intermsofspeed,campusnetworkbackbonespeedincreasefromthefirst100Mbpsto10,000Mbps(10Gbps).Intheagreement,frompasttoupgradetotheIPv4IPv6.Inthesegmenthasalsobeenaqualitativebreakthrough:fromtheearlydevelopmentofthesharedmediumlocalareanetworktothecurrentswitchedLAN.SwitchedLANtechnologyenablesbandwidthofdedicatedusersasopposedtogreatlyimprovetheefficiencyoflocalareanetworktransmission.Inaddition,suchasthebroadbandintelligentnetwork,intelligentopticalnetworking,opticalfibercommunicationnetworkandsoftswitchtechnology,newnetworktechnologiesareemerging.Weregiventhefollowingset1Multi-layerswitchingtechnologyparknetworknetwork.Convergencelayergenerallyfarawayfromthenetworkcenter,theneedfordozensofbuildingsafewblocksoraccessswitchconvergence,foraregionalnetworking.Accesslayergenerallylocatedwithinabuilding,orthefloorforGailoucomputerterminalnetwork.Asthemorecomplexthestructureofthecampusnetwork,themanagementbemorenumberofcomputers,inordertobettermanagethenetwork,improvenetworkefficiency,thelayeredswitchingtechnologyinvolved.Amongthem,thethirdlayerswitchingtechnologyisoperationalinthethirdlayernetworkprotocolisaroutingdeviceandcanbeplayedtounderstandtheroleoftheroutingdecision;fast,almosttothesecondtierexchangerate.Here,wediscussanexampleofaparkshouldbeconsideredinnetworkdesignandnetworkswitchingelements.Thecurrentnetworkarchitecturewithlayeredstructureare:corelayer,convergencelayerandaccesslayer.Fromthenetworkprotocollevelcanbedividedintothefirstlayer,secondlayer,thirdlayer....Thestructureofthenetworksystem,thecorelayerinthenetworkengineroom,responsibleforthemanagementoftheentirecampusnetwork.Convergencelayergenerallyfarawayfromthenetworkcenter,theneedfordozensofbuildingsafewblocksoraccessswitchconvergence,foraregionalnetworking.Accesslayergenerallylocatedwithinabuilding,orthefloor
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