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        <title>八百标兵奔北坡 - b.理论储备:01.tcpip:卷1-协议</title>
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       <dc:date>2026-05-02T03:30:55+00:00</dc:date>
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        <title>八百标兵奔北坡</title>
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        <dc:date>2024-02-13T12:11:09+00:00</dc:date>
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        <title>c1-概述</title>
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        <description>不同厂商,不同型号的计算机之间也需要进行数据交换,它们也需要一系列通用的协议来完成指定任务.所以就需要TCP/IP参考模型.</description>
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        <dc:date>2024-04-03T13:11:44+00:00</dc:date>
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        <title>c2-internet地址结构</title>
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        <description>表示IP地址

大多数用户所熟悉的IP地址,是IPv4地址,一般采用
点分十进制

与之相对的,是在IPv6中,地址长度从32位扩展到128位,它使用的是8段四位十六进制数,每个字段由冒号: 分隔.并且它也有一些简化的书写方法.$2^{32}=4,294,967,296$$2^{128}=340,282,366,920,938,463,463,374,607,431,768,211,456$</description>
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        <dc:date>2024-04-03T13:51:58+00:00</dc:date>
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        <title>c3-链路层</title>
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        <description>3.1 引言

链路层的目的是为IP模块发送和接收IP数据报(即PDU),在L2链路层可以携带一些IP辅助协议,比如ARP.

TCP/IP支持多种不同的链路层,即该层所处的局域网,它于网络硬件类型有关,常见的有以下几种:$64\times 8bit/ 10 \times 10^6 =51.2 \mu s$$51.2 \times 10^{-6} \times 0.77\times 300000000 m/s=11000 m$</description>
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