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ID:59567035
大小:490.00 KB
页数:45页
时间:2020-11-11
《互联网协议(PPT45)(1)讲课教案.ppt》由会员上传分享,免费在线阅读,更多相关内容在教育资源-天天文库。
1、互联网协议(PPT45)(1)1.0TCP/IPandtheDoDModel1.1ComparisonofDodandOSIModel1.2TheTCP/IPprotocolsuite1.3TheProcess/ApplicationlayerProtocols1.4TheHost-to-HostLayerProtocols1.5TheInternetLayerProtocols1.1ComparisonofDoDandOSIModel(1)TheTCP/IPsuitewascreatedbyt
2、heDoDTheDoDmodelisacondensedversionoftheOSImodelApplicationPresentationSessionTransportNetworkDataLinkPhysicalProcess/ApplicationHost-to-HostInternetNetworkAccessDoDModelOSIModelNode-to-nodeapplicationcommunicationControlsuser-interfacespecifications
3、SettinguptheleveloftransmissionserviceforapplicationsTakescareIPaddressanddesignateprotocolsforlogicaltransmissionofpacketsovertheentirenetworkOverseeshardwareaddressinganddefinesprotocolsforthephysicaltransmissionofdata1.1ComparisonofDoDandOSIModel(
4、2)TCP/IPModelOSIModel1.2TheTCP/IPProtocolSuiteProcess/ApplicationTelnetTCPUDPIPICMPARPLANTechnologies:Ethernet,FastEthernet,TokenRing,FDDIWANTechnologies:SerialLines,FrameRelay,ATMRARPHost-to-HostInternetNetworkAccessFTPTFTPSMTPLPDSNMPNFSXWindowBootP
5、/DHCPDNSIGMP1.3TheProcess/ApplicationLayerProtocolsTelnet–TelephoneNetworkFTP–FileTransferProtocolTFTP–TrivialFileTransferProtocolNFS–NetworkFileSystemSMTP–SimpleMailTransferProtocolLPD–LinePrinterDaemonXWindow–writingaGUI-basedclient/serverapplicati
6、onsDNS–DomainNameService(DNS)BootP–BootstrapProtocolDHCP–DynamicHostConfigurationProtocol1.4TheHost-to-HostLayerProtocolsToshieldtheupper-layerapplicationsfromthecomplexitiesofthenetworkTCP(TransmissionControlProtocol)Breakdowndatafromupperlayersinto
7、SegmentNumbersandsequenceseachsegmentConnection-oriented–virtualcircuitrequiredUserDatagramProtocol(UDP)BreakdowndatabutnotsequencethesegmentThinprotocolwhichdoesn’ttakeupmuchbandwidthonanetworkConnectionless–novirtualcircuitrequired,thusunreliableFo
8、rsendinglittlemessageandreliabilityaccomplishedattheupperlayers1.4aTransmissionControlProtocol(TCP)Connection-orientedSessionisestablishedbeforeexchangingdataVirtualcircuitrequiredReliableDeliverySequencenumbersAcknowledgments(ACKs)Doesn’ttrustthelow
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