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计算机网络硬件:选择网络传输介质及网卡 PowerPoint PPT Presentation


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计算机网络硬件:选择网络传输介质及网卡. 本次课的目标. 拟实现的能力目标 能正确识别传输介质 能正确使用网络接线 能进行网卡硬件和驱动程序的安装。 相关支撑知识 传输介质特性 网卡功能、分类. 一、网卡(网络适配器). 网络适配器 NIC ( Network Interface Card )也称网卡。网卡是构成计算机网络系统中最基本的、最重要的和必不可少的连接设备,计算机主要通过网卡接入网络。. 网卡的作用. ⑴ 代表固定的网络地址 在网络中传输数据,必须确定数据从哪台计算机来,到哪台计算机去,如何标识这些计算机呢?这就要靠网卡的物理地址来标识。

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计算机网络硬件:选择网络传输介质及网卡

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  • NICNetwork Interface Card


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  • (Ethernet Address)6

  • IEEE802648MAC

  • MAC324IEEE24

  • MAC


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  • ()


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  • 2-1PCI


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  • 2-2IntelPRO/1000 XT Server Adapter

2-2 Intel


Isa eisa pci

ISAEISAPCI

  • PC

  • ISA816

  • EISA32386486

  • PCIPCMCIA


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  • BNCAUIRJ-45

  • BNC()

  • AUI()(RJ-11)

  • RJ-45()10Mbps100Mbps1000Mbps

  • (RJ-45+BNC)3(RJ-45+BNC+AUI)


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  • 10Mbps100Mbps10/100Mbps1000Mbps

  • 10MbpsEISABNCRJ-45

  • 100Mbps100Mbps

  • 10/100Mbps()10Mbps100Mbps

  • 1000Mbps


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  • PCIISAPCIPCI

  • WindowsNetwareUnixLinux

  • BootROM(Wake on LAN)


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()


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  • (MHZ)

  • (Mbps)


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  • 50 D=1.02cm10Mbps

  • 185m45925m

  • TBNCTerminator


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  • 50 D=2.54cm10Mbps

  • 500m452500m

  • Terminator


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  • 100Gb/s


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  • --

  • -1-0

  • : 850nm/1300nm/1500nm

  • /

  • :

  • : PIN/APD


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  • 2-7

2-7


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  • 810m125m

  • 50100m125 230m


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  • 240GHZ


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