PRESENTATIONLAYERPHYSICALLAYER•Interfacesbetweennetworkmediumandnetworkdevices•DefineselectricalandmechanicalcharacteristicsDATALINKLAYER•Framespackets•ControlsphysicallayerdataflowNETWORKLAYER•AddressesandroutespacketsTRANSPORTLAYER•Managesnetworklayerconnections•ProvidesreliablepacketdeliverymechanismSESSIONLAYER•Specifiesarchitecture-independentdatatransferformat•Encodesanddecodesdata;encryptsanddecryptsdata;compressesdataAPPLICATIONLAYER•Providesinterfacetoend-userprocesses•Providesstandardizedservicestoapplications802.2EthernetV.2InternetworkNETWORKASSOCIATESGUIDETOCOMMUNICATIONSPROTOCOLSTCP/IPPresentationServicesSNATransactionServicesEthernetV.2ARPAServicesSLIPSerialLineIPCSLIPCompressedSlipRUNIXRemoteUNIXServicesNovellNetWareIBMProtocolsISONetWareLiteNDSNetWareDirectoryServicesRPLRemoteProgramLoadNCPNetWareCoreProtocolIPXWAN2PathControlDLSwDataLinkSwitchingSSPSwitchtoSwitchProtocolIS-ISIntermediateSystemtoIntermediateSystemDualIS-ISACSE-AssociationControlServiceElementROSE-RemoteOperationServiceElementRTSE-ReliableTransferServiceElementDECnetPhaseIVES-ISEndSystemtoIntermediateSystemDAPDataAccessProtocolXNSXeroxNetworkSystemXNSCourierBulkDataTransferProtocolGAPGatewayAccessProtocolXNSApplicationServicesApplicationSupportVirtualTerminalFilingMailPrintingAARPAppleTalkAddressResolutionProtocolADSPAppleTalkDataStreamProtocolAEPAppleTalkEchoProtocolNBPNameBindingProtocolZIPZoneInformationProtocolATPAppleTalkTransactionProtocolAppleTalkAFPAppleTalkFilingProtocolPostscriptBanyanVINESPAPPrinterAccessProtocolVRTP/VSRTPVINES(Sequenced)RoutingUpdateProtocolVICPVINESInternetControlProtocolVARP/VSARPVINES(Sequenced)AddressResolutionProtocolISO-DEISODevelopmentEnvironmentXNSCourierMessageStreamObjectStreamBlockStreamVIPVINESInternetProtocolLANsWANsEthernetDataLinkControlEthernet50ohmcoaxThinWire50ohmcoaxBroadband75ohmcoaxEthernetTokenRingFDDIATMDRPDECnetRoutingProtocolConnection-orientedSessionProtocolLATLocalAreaTransportProtocolSCSLAVCASPAppleTalkSessionProtocolKeiwetSessionProtocolX.25PacketLevelProtocol(NotthroughX.25)DSI,DS3SONETDSI,DS3SONETISDNFrameRelayModemStandards(viaX.25)ISDNIntegratedServicesDigitalNetworkSMDSISDN-B64KbpsISDN-D16KbpsBRI64KbpsPRIISDNH384KbpsH111.536MbpsH121.92MbpsBRI-BasicRateInterfacePRI-PrimaryRateInterfaceV.35LAP-AIBMChannelPPPPointtoPointSMDSSwitchedMulti-megabitDataserviceSDLCSynchronousDataLinkControlV.21AT&T103300bpsV.22AT&T2121200bpsAT&T2099600bpsV.22bis2400bpsV.262400bpsV.26bis2400bpsV.27bis4800bpsV.299600bpsV.329600bpsV.32bis14.4kbpsV.42ErrorCorrectionviaMNP5orLAPMV.42bisDataCompressionusingL-ZderivativeFromTCP/IPTCPFromISOTP4FromSNIToFrameRelayFromATMAURPAppleTalkUpdate-basedRoutingProtocolRTMPRoutingTableMaintenanceProtocolVINESApplicationServicesStreetTalk,Mail(IM-III),NetworkMgmt.,ServerService,PCBackend,VINESSecurity,Echotest,FileService,Talk,Async,STDA,Deflector,Diagnostic,NetBIOSoverVINES,PrintService,Semaphore,SNAService,SXServiceHewlett-PackardNetworkServicesNetworkFileTransferRemoteDatabaseAccessRFARemoteFileAccessRemoteProcessComm.VirtualTerminalFTPFileTransferProtocolHTTPHyperTextTransferProtocolTELNETVirtualTerminalSMTPSimpleMailTransferProtocolRIPRoutingInformationProtocolNLSPNetWareLinkServicesProtocolTransmissionControlTPO,TP1,TP2,TP3,TP4TRANSPORTPROTOCOLFromSDLCSynchronousDataLinkControlToSMDSToSMDSAAL1CBRAAL2VBRAALATM-AdaptionLayerATM-LayerAsynchronousTransferModeAAL3/4AAL5DataVLANsVirtualLANsFromDECnetNSPXWindowsSystem(X10/X11)XDRExternalDataRepresentationSNMPSimpleNetworkMgmt.Protocolv1,v2,v2cIprRemotePrintrcpRemoteCopyrexecRemoteExecutionloginRemoteLoginrshRemoteShellSUNNetworkServicesNLMNetworkLockMgr.StatdStatusDaemonNFSNetworkFileSystemPMAPPortMapperBOOTPBootstrapProtocolDHCPDynamicHostConfigurationProtocolNTPNetworkTimeProtocolTFTPTrivialFileTransferProtocolRIPRoutingInformationOSPFOpenShortestPathFirstRoutingBGPBorderGatewayEGPExteriorGatewayGGPGatewaytoGatewayIGRP/EIGRPInteriorGatewayRoutingCISCOBurstModeSAPServiceAdvertisingProtocolSPX,SPX2SequencedPacketExchangeLU6.2LogicalUnitX-25PacketLevelProtocolCONPConnection-orientedNetworkProtocolCLNPConnectionlessNetworkProtocolNETWORKPROTOCOLNICENetworkInformationandCommandExchangeProtocolCTERMNetworkCommandTerminalRIPRoutingInformationProtocolErrorProtocolEchoProtocolIDPInternetworkDatagramProtocolEIARS-232DorV.24RS-449RS-423UnbalancedRS-422-ABalancedHDLCLAPB(ISO)7776)High-levelDataLinkControlLinkAccessProcedureRPCRemoteProcedureCallLPPLightweightPresentationProtocolDDMDistributedDataMgmt.DCADocumentContentArchitectureSNA/FSFileServicesDIADocumentInterchangeArchitectureSNA/MSSNAMgmt.ServicesSNA/DSSNADistributedServicesToNetBIOSISONetBIOSToNetBIOSToNetBIOSSPPSequencePacketProtocolPEPPacketExchangeProtocolSIPSMDSInterfaceProtocolToIPXMOPMaintenanceOperationsProtocolFOUNDFoundationServicesFromBroadbandISDN1BASE5StarLAN10BROAD3610BASE-TTwistedPair10BASE5Thick10BASE2Thin10BASE-F(AorP)Fiber802.2LogicalLinkControlIEEE802.5TokenPassingRingMediaAccessControlIEEE802.12VG-AnyLANIEEE802.3CSMA/CDMediaAccessControlSubN