第3章网络互联设备-ebook179-3

33.13.1.1RPrepeaterOSI3-15433.1.2HubOSI/RM3-25LAN1OSI/RMOSI/RM23-1OSI/RM1OSI/RMOSI/RM23-2OSI/RM1.LANMAU2.3.PSMPSMLAN4.LAN5./3.23.2.11.ModemMODulator/DEModulator/560.33.4KHz101010modem2.(1)110bps3840bps(2)4RS-232(3)bps(bps)1200\2400\9600\14400V.42bis438400bps(4)PSTNLEASEDLINEDDSPSTNLEASDLINEDDS(5)(6)357MNP5V.42bisMNP5V.42bisMNP14MNP5MNP5V.42bisCCITT198942400bps9600bps3.2.21.(1)••3-3(2)•2100Hz•V.25580010110110010110ASCII2ASCII13-3(3)RS-232-C151724•,INT•RS-232-C2417(4)ATATHayesATBellRS-232-C(ASCII)HayesATDTATATATatAt(5)•CCITT.54•(6)359(7)2.(1)•••(2)242424(3)31)ReliablemodeMNP4V.422)(Normalmode)DTEDCE3)(Directmode)DTEDCE4)(Auto-reliablemode)MNPV.42V.42MNPV.42MNP(4)3ASKFSKPSK3601)AM0110ASK2)FM01FSK3)PM180˚10PSK4)/(5)24004800/24004800/bpsBPS/BAUD•DECspeed•DTEspeed•Serialportspeed•240096002400960014400bps2400bps14400bps2400bps•DTERS-232DTEDTE361TELIXPROCOMMDCEDTEDTEDCE14400bps14400bpsDTE57600bps14400bps57600bps•RS-232RS-232RS-232DTENVRAMICNVRAMDIPSWITCHDTENVRAMNVRAM19200bps9600bpsDTE1)ATDTEGarbage2)ATDTE9600DTEVNRAMAT3.2.31.1)•••SNMP62/•SNMPV.42/V.42bis/2/42)DTEDCE41.44KbpsDTE11.5Kbps3)14.4Kbps9600bpsV.17(14.4bps)14.4KbpsV.174)MODEMMODEM5)MODEMMODEMPCPC6)7)ITUX.32MODEMV.25bisHDLC9600bps8)MODEM9)MODEMMODEM2.PCMCIA4RS-232MODEMPMCIAMODEMMODEMMODEM(1)(2)363/(3)3PEE/NOPEPE=1/1000001200bps=102400bps=169600bps=25(4)CCITTV.25V.25bisMODEMMODEMIBMPCAppleMacintoshMODEM(5)1)V.34V.32bis28800bps14,400bps2)MODEMV.42MNP4MODEMMODEMV.42bisMODEMMNP5V.42bisMNP5V.42bis4MODEMV.42bis88MODEM(6)Group(Group)(Class)1(Class1)2(Class2)228,800bps(7)64MNPMicrocomNetworkingProtocol24V.42MNP5V.42bisHayesATHayes(8)AnsweringMachineFaxback(9)1)2)3)MODEM(10)3.33.3.1NetworkInterfaceCardOSI3-4LAN1)RouterSwitchHubNICCPURAMHardDriver2)PCCPURAMHardDriver365OSI/RMOSI/RM3-4OSI/RM10M100M10/100M1000MPCIISAEISAAUIBNCRJ45RJ-45IPCRJ45+BNCTPORJ45COMBORJ45+AUI+BNCTPBNC+AUITP10MISA100MPCIEISAISA16PCI32PCIISACPUASIC40CPUCPUCPUCPU3.3.2Etherlink3COM51)CPUINOUTI/OCPULANISRISRI/OCPU2)CPUMOVISRCPU3)DMAISRCPUDMADMADMADMAISRCPUHOLDCPULANDMA664)LANIRQLANISRISR5)CPURAMROMI/OCPULANCPULANIRQLANISRISRCPUCPULANI/O100100010CSMA/CD10M100M1000M100M100010M10100808000Mbps100M1000MHUB100M/1000M3.3.3ISAEISAPCMCIAPCIMCMicroChannelIBMMC51.ISAISAISA10Mbps10Mbps100Mbps•ISA16•ISA8MHz•ISA•ISAI/OISA•86ISA••NE2000•I/O•RPL•POST••FDX••IBMLANAID•SMPsEISAPCIISA367•RPL•POST2.PCIPCI32UTPAUI10Mbps•32•FDX••LEDLink(Activity)•RPL•POST100/10PCIFDXHDX100Mbps10MbpsIEEE802.3100/10PCI•10Mbps100Mbps••RJ-4510Mbps100Mbps•SMPs3.PCMCIAPCPCMCIAPCMCIARelease2.0IBM10BASE-T10BASE2IEEE802.3/EthernetVersion2.010BASE-T10BASE24.(MCA)IBM3IBMLANAdapter/AuforEthernet1632••RPL•POST5.EISAEISA32CPU10BASE-T10BASE2AUI33.3.43COMInter3COMIBM3COM3COM1.FastEtherLinkXLandFastEtherLinkCard•FastEtherLinkXLPCI3C905-TX:1RJ4510/100Mbps68•FastEtherLinkISA3C515-TX1RJ4510/100Mbps•FastEtherLinkEISA3C597-TX1RJ4510/100Mbps•FastEtherLinkPCI3C595-T41RJ4510/100Mbps3452.EtherLinkXLandEtherLinkCard•EtherLinkXLPCI3C900-TPO1RJ-4510Mbps•EtherLinkXLPCI3C900-COMBO1BNCAUI1BJ-4510Mbps•EtherLinkISA3C509-TPO1RJ-4510Mbps•EtherLinkISA3C509-TPC1BNC1RJ-4510Mbps•EtherLinkISA3C509-COMBO1BNC1AUI1RJ-4510Mbps•EtherLinkISA3C508-TPO1RJ-4510Mbps•EtherLinkISA3C508-TPO1RJ-4510Mbps•EtherLinkEISA3C592-TPO1RJ-4510Mbps•EtherLinkEISA3C592-COMBO1BNC1RJ-4510Mbps•EtherLinkMCA3C592-TP1AUI1RJ-4510Mbps•EtherLinkMCA3C5921BNC1AUI10Mbps•EtherLinkLANPCCard3C589C-TPPCMCIA1RJ-4510Mbps•EtherLinkLANPCCard3C589C-COMBOPCMCIA1BNC1RJ-4510Mbps•EtherLinkLAN+33,6ModemPCCard3C5563C-TPPCMCIA1RJ-1110MbpsModem28.8Kbps3.TokenLinkVelocityandTokenLinkCard•TokenLinkVelocityPCI3C339:STP/UIP16/4Mbps1DB-91RJ-45•TokenLinkVelocityISA3C319:STP/UIP16/4Mbps1DB-91RJ-45•TokenLinkEISA3C679:STP/UIP16/4Mbps1DB-91RJ-45•TokenLinkPCCard3C689:PCMCIASTP/UIP16/4Mbps1DB-91RJ-454.FDDI•5UTPSASDAS100MbpsRJ-45UTPMICEISAfiberSCOCIfiberSMTPCM•FDDILink-FEISA3C771A•FDDILinkPCIFiberSAS3C795•FDDILinkPCIFiberDAS3C796•FDDILink-UTP3C775A•FDDILinkPCIUTPSAS3C7975.ATM•SONET/SDH155MbpsPCIDuplexSC•ATMLinkPCI-155Fiber3C971-F•ATMLinkSbus-155Fiber3C970-F6.3693.4BrigeLLCMACMACDDLOSI/RM3-53.4.1FDDIFDDIFDDIIEEE802.3CSMA/CD•LLCLLC•MACFDDIFDDI4500•PHYPMDFDDI-IEEE802.3•MACFDDILLC•IEEE802.310Mbps3.4.2FDDI1.7012OSI/RMOSI/RM3-5OSI/RM2.LANFilter1)2)3)3.SpanningTreeIEEE802.1d••4.FDDIFDDIIEEE802IEEE802.51)EncapsulationBridgeFDDIFDDI-EthernetFDDIFDDI371FDDIFDDI2)TranslatingBridgeFDDI-EthernetFDDIEthernetFDDIFDDIFDDI5.FDDI4500IEEE802.31518FDDIEthernetFDDI45001518IEEE802.3EthernetFDDI1518FDDIFDDIFDDI6.3.4.31.2.3.723.53.5.119931994OSI2MAC6414880bps12689280bps614880bps/3.5.21.•••OSI2.•14•373MADGELET3.ATMATM53ATMATMATMATM25M155M622MGb3.5.3•••FDDI•ATM••••••••1)2)3)4)5)6)7)8)9)10)3.5.41.74GbpsCSMA/CD/3COMLinkSwitch1000100Mbps2.NetWareWindowsNTLANServerMACMACMACMACMAC3.1)2)MACMACMAC3)CiscoInter-SwitchLink(ISL)(ATMFDDIFastEthernet)Hub4.100BASE-TX100BASAE-T4100BASE-FX100MbpsCDDI/FDDICDDI/FDDI3753COMLinkSwitchLANplexBAYLattisSwitch2800BAYSTACKWorkgroupSystem3000/5000CiscoGatalyst1000/2000/3000/5000ATM3.6OSI/RM3OSI/RM3-63-6OSI/RM3.6.1Router7612OSI/RMOSI/RMRoutingTable1.