Chapter 8 wide area network wan
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Chapter 8 Wide Area Network(WAN) 广 域 网 PowerPoint PPT Presentation


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Chapter 8 Wide Area Network(WAN) 广 域 网. 8.1 广域网的基本概念. 依据网络的规模,网络技术可分为三类: 局域网 LAN :能跨越一栋大楼或一个校园 城域网 MAN :能跨越一个城市 广域网 WAN :能连接多个城市,国家或大洲--广域网不仅仅只是连接许多结点中的计算机,它还必须能使得计算机之间能同时通信。. 电路交换和分组(分组)交换. 电路交换:在传输数据之前,先建立源和目的之间的连接,建立连接之后,传输数据独享连接带宽,不论有无数据传输,连接都被独占。传输结束后,要释放连接。

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Chapter 8 Wide Area Network(WAN) 广 域 网

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Chapter 8 wide area network wan

Chapter 8 Wide Area Network(WAN)


Chapter 8 wide area network wan

8.1

  • LAN

  • MAN

  • WAN


Chapter 8 wide area network wan


Chapter 8 wide area network wan


Chapter 8 wide area network wan


Store and forward

/

(store and forward)


Chapter 8 wide area network wan

.

,.


Chapter 8 wide area network wan

  • ,.

  • .

  • ,;

  • ,.


Chapter 8 wide area network wan


Chapter 8 wide area network wan

:

  • ();

  • ;

  • ,;

  • ,.

  • ,.

  • ,.


Chapter 8 wide area network wan

:

  • ,,;

  • ,.

  • ,.

  • .,.

  • ,.

  • .


Chapter 8 wide area network wan

:

  • ,()

  • (TCP)


Chapter 8 wide area network wan

  • OSI

  • Internet


Chapter 8 wide area network wan


Chapter 8 wide area network wan

8.2


Chapter 8 wide area network wan


Next hop forwarding

(next-hop forwarding)

  • switch2


Chapter 8 wide area network wan


Chapter 8 wide area network wan


Chapter 8 wide area network wan


Chapter 8 wide area network wan


Chapter 8 wide area network wan


Chapter 8 wide area network wan


Chapter 8 wide area network wan

  • Dijkstra


Chapter 8 wide area network wan

  • ARPANET

  • X.25

  • ISDN

  • Frame Relay

  • SMDS(Switched Multi-megabit Data Service)

  • ATM(Asynchronous Transfer Mode)


Chapter 8 wide area network wan


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