第四章 线缆测试及局域网、广域网布线,主要内容,介绍关于网络布线和线缆测试的知识 。,core_sw_a,ISDN Cloud,Leased Line/ Frame Relay,网络连接图例,Legend FastEthernet/ Ethernet ISDN Dedicated,Core_Server,4.1 线缆测试,1、TIA/EIA-568B标准 规定通过10项测试。 2、测试工具 Fluke测试仪，通断测试器,4.2 端口识别,AUI connectors are DB15,ISO 8877 (RJ-45) connectors and jacks are slightly larger than RJ-11 phone connectors and jacks,Fiber Connector Port,4.2 端口识别,1、交换机常见接口： RJ45 以太网接口， 10/100/1000BASE-TX 堆叠模块， 光纤模块， 1000BASE-SX，1000BASE-LX/LH， 1000BASE-ZX,4.2 端口识别,2、路由器常见接口： Console 端口 AUX 端口 高速同步串口 RJ45 以太或快速以太网接口 AUI 端口 ISDN 端口,4.3 局域网布线连接,The RJ-45 Connector,1,8,8,Pair 4 R4,1,2,3,4,5,6,7,Wire Pair T is Tip R is Ring,Pair 2 T2,Pair 2 R2,Pair 3 T3,Pair 1 R1,Pair 1 T1,Pair 3 R3,Pair 4 T4,Pin,1、UTP连接器,2、UTP 直连（正接）,Wires on cable ends are in same order,Pin Label 1 RD+ 2 RD- 3 TD+ 4 NC 5 NC 6 TD- 7 NC 8 NC,Cable 10BaseT/ 100BaseT Straight-through,Pin Label 1 TD+ 2 TD- 3 RD+ 4 NC 5 NC 6 RD- 7 NC 8 NC,Server/Router,1,8,Straight-through Cable,8,1,Hub/Switch,8,1,w o,o,b,w b,w g,g,br,w br,8,1,w o,o,b,w b,w g,g,br,w br,制作跳线注意,1、水晶头铜片朝上看线序 2、每根线要顶到头 3、线缆外皮要夹牢在水晶头内 4、卡线时要用力,3、UTP 跨接（反接）,Some wires on cable ends are crossed,8,1,w o,o,w b,w g,b,g,br,w br,Cable 10BaseT/ 100BaseT Crossover,Pin Label 1 RD+ 2 RD- 3 TD+ 4 NC 5 NC 6 TD- 7 NC 8 NC,Pin Label 1 RD+ 2 RD- 3 TD+ 4 NC 5 NC 6 TD- 7 NC 8 NC,Crossover Cable,1,8,1,8,8,1,w g,g,w b,w o,b,o,br,w br,Hub/Switch,Hub/Switch,4、UTP 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,UTP实现设备互联,Crossover,Crossover,Straight-through,Straight-through,Straight-through,4.4 工作站和服务器,1、对等网络 2、客户/服务器网络,4.5 连接广域网 WAN,Core_Server,core_sw_a,ISDN Cloud,Legend FastEthernet/ Ethernet ISDN Dedicated,core_sw_b,core_sw_b,ISL,Leased Line/ Frame Relay,WAN 物理层实现,PPP,Frame Relay,EIA/TIA-232 EIA/TIA-449 X.121 V.24 V.35 HSSI,ISDN BRI (with PPP),RJ-45 NOTE: Pinouts are different than RJ-45 used in campus,HDLC,DSL,Cable Modem,RJ11,F,Differentiating Between WAN Serial Connectors,Router connections,Network connections at the CSU/DSU,EIA/TIA-232,EIA/TIA-449,EIA-530,V.35,X.21,CSU/ DSU,End user device,DTE,DCE,Service provider,Data Terminal Equipment End of the users device on the WAN link,Data Communications Equipment End of the WAN providers side of the communication facility DCE is responsible for clocking,DCE,DTE,Modem CSU/DSU,DTE,DTE,DCE,DCE,Serial Implementation of DTE versus DCE,DTE/DCEThe point where responsibility passes,Fixed Interfaces,2500 Routerrear view,Serial WAN ports can be fixed,Console,1603 Routerrear view,Ethernet AUI,Ethernet 10BaseT,ISDN BRI S/T,Serial WAN ports can be modular,3640 Router rear view,Modular Interfaces,Module,WAN Interface Card,Cabling Routers for ISDN Connections,Determine if you need a BRI S/T or U Interface Routers have one or both types of ports,Note port Label,Cabling 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 Router,ISDN BRI port,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 console,4.6 Console 口连接,Device with console,超级终端的配置（COM端口）,Visual Objective,core_ server,wg_sw_a,wg_sw_l,wg_pc_a,wg_pc_l,.,LL/FR,wg_ro_a,wg_ro_l,e0/1 (1x),e0/2 (2x),fa0/26 (Ax),e0/2 (2x),e0/1 (1x),e0,e0,s0,s0,bri0,bri0,fa0/26 (Ax),fa0/1 (1x),fa0/12 (12x),fa0/23 (23x),fa0/24 (24x),fa0/0,s1/0 - s2/3,s3/0,console,console,A/B,A/B,console,console,core_sw_a,core_ro,.,ISDN,Summary,After 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 locations,1. Does the following pinout scheme reflect a straight-through, rollover, or crossover cable? 2. What media can be used for each connector type?,Review Questions,A,B,C,Blank for pagination,