WirelessLANsDescribingWLANTopologies
WLANTopologiesWirelessclientaccessMobileuserconnectivityWirelessbridgingLAN-to-LANconnectivityWirelessmeshnetworkingCombinationofbridginganduserconnectivity
WLANandLAN
ServiceSetIdentifier(SSID)SSIDisusedtologicallyseparateWLANs.TheSSIDmustmatchonclientandaccesspoint.AccesspointbroadcastsoneSSIDinbeacon.ClientcanbeconfiguredwithoutSSID.Clientassociationsteps:Clientsendsproberequest.Apointsendsproberesponse.Clientinitiatesassociation.Apointacceptsassociation.ApointaddsclientMACaddresstoassociationtable.
WLANAccessTopology
WirelessRepeaterTopology
WorkgroupBridgeTopology
AlternativePeer-to-PeerTopology
ServiceSetsandModesAdhocmode特定模式IndependentBasicServiceSet(IBSS)Mobileclientsconnectdirectlywithoutanintermediateaccesspoint.Infrastructuremode基础结构模式BasicServiceSetMobileclientsuseasingleaccesspointforconnectingtoeachotherortowirednetworkresources.ExtendedServicesSetTwoormoreBasicServiceSetsareconnectedbyacommondistributionsystem.
RoamingThroughWirelessCells
RoamingThroughWirelessCellsRoaming
ClientRoamingRoamingwithoutinterruptionrequiresthesameSSIDonallaccesspoints.MaximumdataretrycountexceededToomanybeaconsmissedDatarateshiftedPeriodicintervals
Layer2vs.Layer3Roaming
WirelessVLANSupportMultipleSSIDsMultiplesecuritytypesSupportformultipleVLANsfromswitches802.1Qtrunkingprotocol
WirelessVLANSupport(Cont.)VLANspropagate
acrossaccesspoints.VLANnumbersareunique.Accesspointshandleupto16VLANs.
EnterpriseVoiceArchitecture
WirelessMeshNetworkingInameshnetworktopology,devicesareconnectedwithredundantconnectionsbetweennodes.
WirelessMeshNetworkingMeshaccesspointsautomaticallyestablishconnectiontocontroller.Rooftopaccesspoints(RAP)connectviawiredconnection.Meshaccesspoints(MAP)connectviaself-configurin
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