资源描述
3-1第四章第四章I2-2主要内容主要内容介绍关于网络布线和线缆测试的知识介绍关于网络布线和线缆测试的知识。I2-3core_sw_a ISDN Cloud Leased Line/Frame Relay 网络连接图例网络连接图例LegendFastEthernet/EthernetISDNDedicatedCore_Server I2-44.1 线缆测试线缆测试1 1、TIA/EIA-568BTIA/EIA-568B标准标准规定通过规定通过1010项测试。项测试。2 2、测试工具、测试工具FlukeFluke测试仪，通断测试器测试仪，通断测试器I2-54.2 端口识别端口识别AUI connectors are DB15ISO 8877(RJ-45)connectors and jacks are slightly larger than RJ-11 phone connectors and jacksFiber Connector PortI2-64.2 端口识别端口识别1、交换机常见接口：、交换机常见接口：RJ45 以太网接口，以太网接口，10/100/1000BASE-TX 堆叠模块，堆叠模块，光纤模块，光纤模块，1000BASE-SX，1000BASE-LX/LH，1000BASE-ZXI2-74.2 端口识别端口识别2、路由器常见接口：、路由器常见接口：Console 端口端口AUX 端口端口高速同步串口高速同步串口RJ45 以太或快速以太网接口以太或快速以太网接口AUI 端口端口ISDN 端口端口I2-84.3 局域网布线连接局域网布线连接The RJ-45 Connector188Pair 4 R41234567Wire PairT is TipR is RingPair 2 T2Pair 2 R2Pair 3 T3Pair 1 R1Pair 1 T1Pair 3 R3Pair 4 T4Pin 1 1、UTPUTP连接器连接器I2-92、UTP 直连（正接）直连（正接）Wires on cable ends are in same orderPin Label1RD+2RD-3TD+4NC5NC6TD-7NC8NCCable 10BaseT/100BaseT Straight-throughPin Label1TD+2TD-3RD+4NC5NC6RD-7NC8NCServer/Router18Straight-through Cable81Hub/Switch8 1woobwbwggbrwbr8 1woobwbwggbrwbrI2-10制作跳线注意制作跳线注意1、水晶头铜片朝上看线序、水晶头铜片朝上看线序2、每根线要顶到头、每根线要顶到头3、线缆外皮要夹牢在水晶头内、线缆外皮要夹牢在水晶头内4、卡线时要用力、卡线时要用力I2-113、UTP 跨接（反接）跨接（反接）Some wires on cable ends are crossed8 1woowbwgbgbr wbrCable 10BaseT/100BaseT CrossoverPin Label1RD+2RD-3TD+4NC5NC6TD-7NC8NCPin Label1RD+2RD-3TD+4NC5NC6TD-7NC8NCCrossover Cable181881wggwbwobobrwbrHub/SwitchHub/SwitchI2-124、UTP 实现直连和跨接实现直连和跨接Use a crossover cable when BOTH ports are designated with an x or neither port is designated with an x.Use straight-through when only one port is designated with an X.1x 2x 3x 4x 1x 2x 3x 4x 1x 2x 3x 4x I2-13UTP实现设备互联实现设备互联CrossoverCrossoverStraight-throughStraight-throughStraight-throughI2-144.4 工作站和服务器工作站和服务器1、对等网络、对等网络2、客户、客户/服务器网络服务器网络I2-154.5 连接广域网连接广域网 WANCore_Server core_sw_a ISDN Cloud LegendFastEthernet/EthernetISDNDedicatedcore_sw_b core_sw_b ISL Leased Line/Frame Relay I2-16WAN 物理层实现物理层实现PPPFrame RelayEIA/TIA-232EIA/TIA-449X.121 V.24 V.35HSSIISDN BRI(with PPP)RJ-45NOTE:Pinouts are different than RJ-45 used in campusHDLCDSLCableModemRJ11FI2-17Differentiating Between WAN Serial ConnectorsRouter connectionsNetwork connections at the CSU/DSUEIA/TIA-232EIA/TIA-449EIA-530V.35X.21CSU/DSUEnd user deviceDTEDCEService providerI2-18Data Terminal EquipmentEnd of the users deviceon the WAN linkData Communications Equipment End of the WAN providers side of the communication facility DCE is responsible for clockingDCEDTEModemCSU/DSUSSSSSSDTEDTEDCEDCESerial Implementation ofDTE versus DCEDTE/DCEThe point where responsibility passesI2-19Fixed Interfaces2500 Routerrear viewSerial WAN ports can be fixedI2-20Console1603 Routerrear viewEthernet AUIEthernet 10BaseTISDN BRI S/TSerial WAN ports can be modular3640 Routerrear viewModular InterfacesModuleWAN Interface CardI2-21Cabling Routers for ISDN ConnectionsDetermine if you need a BRI S/T or U Interface Routers have one or both types of portsNote port LabelI2-22Cabling Routers for ISDN Connections(cont.)!WARNING!Do not connect a cable into an ISDN port unless it is from an ISDN switch or ISDN wall jack.If you connect a cable from any other device into the BRI port,you will ruin the non-ISDN device.Cisco RouterISDN BRI port I2-23 PCs require an RJ-45 to DB-9 or RJ-45 to DB-25 adapter COM port settings are 9600 bps,8 data bits,no parity,1 stop bit,no flow control This provides out-of-band console access AUX switch port may be used for modem-connected console4.6 Console 口连接口连接Device with consoleI2-24超级终端的配置（超级终端的配置（COM端口）端口）I2-25Visual Objectivecore_ serverwg_sw_awg_sw_lwg_pc_awg_pc_l.LL/FRwg_ro_awg_ro_le0/1(1x)e0/2(2x)fa0/26(Ax)e0/2(2x)e0/1(1x)e0e0s0s0bri0bri0fa0/26(Ax)fa0/1(1x)fa0/12(12x)fa0/23(23x)fa0/24(24x)fa0/0s1/0-s2/3s3/0consoleconsoleA/BA/Bconsoleconsolecore_sw_acore_ro.ISDNI2-26SummaryAfter completing this chapter,you should be able to perform the following tasks:Identify and connect necessary components to enable connectivity between switches and routers Identify and connect necessary components to enable WAN connectivity between over serial or ISDN BRI connections Set up console connections on routers and switches Document the physical topology of a network,including cable types and locationsI2-271.Does the following pinout scheme reflect a straight-through,rollover,or crossover cable?2.What media can be used for each connector type?Review Questions8 1w0owbwgb gbrwbr81wggwbwob obrwbrABCI2-28Blank for pagination
展开阅读全文