【免费】5.网络1资源-CSDN文库

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一．计算机网络概念 .............................................................................................................................1

二．网络拓扑结构： ...............................................................................................................................2

三．七层网络模型（OSI/RM） ...........................................................................................................2

由 ISO/OSI 组织发布........................................................................................................................2

四．网络互联硬件 .................................................................................................................................3

传输介质： .......................................................................................................................................3

组建网络： .......................................................................................................................................3

五．网络协议..........................................................................................................................................3

局域网协议：b 为 bit，不是字节 byte........................................................................................3

广域网协议： ...................................................................................................................................3

六． TCP/IP 协议族................................................................................................................................4

特性： ...............................................................................................................................................4

TCP/IP 模型： ...................................................................................................................................4

网际层协议： ...................................................................................................................................4

传输层协议： ...................................................................................................................................4

应用层协议： ...................................................................................................................................5

七．路由选择策略 .................................................................................................................................5

静态路由选择 ...................................................................................................................................5

动态路由选择 ...................................................................................................................................6

八． IP 地址.............................................................................................................................................6

分类地址 ...........................................................................................................................................6

无分类编址 .......................................................................................................................................7

IPV6....................................................................................................................................................7

九．其它重要应用 .................................................................................................................................8

层次化网络模型从下至上分为三层： ...........................................................................................8

网络地址翻译 NAT： .......................................................................................................................8

默认网关： .......................................................................................................................................8