思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章

CommunicatingovertheNetworkNetworkFundamentals–Chapter2思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第1頁!ObjectivesDescribethestructureofanetwork,includingthedevicesandmediathatarenecessaryforsuccessfulmunications.Explainthefunctionofprotocolsinnetworkmunications.Explaintheadvantagesofusingalayeredmodeltodescribenetworkfunctionality.Describetheroleofeachlayerintworecognizednetworkmodels:TheTCP/IPmodelandtheOSImodel.Describetheimportanceofaddressingandnamingschemesinnetworkmunications.思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第2頁!NetworkStructureDefinetheelementsofmunication3monelementsofmunication messagesource thechannel messagedestinationDefineanetworkdataorinformationnetworkscapableofcarryingmanydifferenttypesofmunications思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第3頁!NetworkStructureDescribehowmessagesaremunicatedDataissentacrossanetworkinsmall“chunks”calledsegments思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第4頁!NetworkStructureEndDevicesandtheirRoleintheNetworkEnddevicesforminterfacewithhumannetwork&municationsnetworkRoleofenddevices: client server bothclientandserver思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第5頁!NetworkStructureDefinenetworkmediaandcriteriaformakinganetworkmediachoiceNetworkmedia thisisthechanneloverwhichamessagetravels思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第6頁!NetworkTypesDefineWideAreaNetworks(WANs)-LANsseparatedbygeographicdistanceareconnectedbyanetworkknownasaWideAreaNetwork(WAN)思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第7頁!NetworkTypesDescribenetworkrepresentations思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第8頁!FunctionofProtocolinNetworkCommunicationExplainnetworkprotocolsNetworkprotocolsareusedtoallowdevicestomunicatesuccessfully思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第9頁!FunctionofProtocolinNetworkCommunicationDefinedifferentprotocolsandhowtheyinteract思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第10頁!LayerswithTCP/IPandOSIModelExplainthebenefitsofusingalayeredmodelBenefitsincludeassistsinprotocoldesignfosterspetitionchangesinonelayerdonotaffectotherlayersprovidesamonlanguage

思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第11頁!LayerswithTCP/IPandOSIModelDescribetheCommunicationProcess思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第12頁!LayerswithTCP/IPandOSIModelDescribetheprocessofsendingandreceivingmessages思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第13頁!LayerswithTCP/IPandOSIModelDefineOSI思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第14頁!AddressingandNamingSchemesExplainhowlabelsinencapsulationheadersareusedtomanagemunicationindatanetworks思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第15頁!AddressingandNamingSchemesExplainhowlabelsinencapsulationheadersareusedtomanagemunicationindatanetworks思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第16頁!Summary思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第17頁!NetworkStructureDefinetheponentsofanetworkNetworkponents hardware software思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第18頁!NetworkStructureIdentifytheroleofanintermediarydeviceinadatanetworkandbeabletocontrastthatrolewiththeroleofanenddeviceRoleofanintermediarydevice providesconnectivityandensuresdataflows acrossnetwork思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第19頁!NetworkTypesDefineLocalAreaNetworks(LANs)-Anetworkservingahome,buildingorcampusisconsideredaLocalAreaNetwork(LAN)思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第20頁!NetworkTypesDefinetheInternet Theinternetisdefinedasa globalmeshofinterconnectednetworks思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第21頁!FunctionofProtocolinNetworkCommunicationTheimportanceofprotocolsandhowtheyareusedtofacilitatemunicationoverdatanetworksAprotocolisasetofpredeterminedrules思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第22頁!FunctionofProtocolinNetworkCommunicationDescribeProtocolsuitesandindustrystandardsAstandardis aprocessorprotocolthathasbeenendorsedbythe networkingindustryandratifiedbyastandardsorganization思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第23頁!FunctionofProtocolinNetworkCommunicationTechnologyindependentProtocols-Manydiversetypesofdevicescanmunicateusingthesamesetsofprotocols.Thisisbecauseprotocolsspecifynetworkfunctionality,nottheunderlyingtechnologytosupportthisfunctionality.思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第24頁!LayerswithTCP/IPandOSIModelDescribeTCP/IPMode思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第25頁!LayerswithTCP/IPandOSIModelExplainprotocoldataunits(PDU)andencapsulation思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第26頁!LayerswithTCP/IPandOSIModelExplainprotocolandreferencemodelsAprotocolmodel providesamodelthat closelymatchesthe structureofaparticular protocolsuite.Areferencemodel providesamon referencefor maintaining consistencywithinall typesofnetwork protocolsandservices.思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第27頁!LayerswithTCP/IPandOSIModelCompareOSIandTCP/IPmodel思科網(wǎng)絡(luò)課件計(jì)算機(jī)網(wǎng)絡(luò)雙語教程第二章共31頁，您現(xiàn)在瀏覽的是第28頁!AddressingandNamingSchemesDescribeexamplesofEthernetMACAddresses,IPAddresses,andTCP/UDPPortnumb