第四章:网络层(计算机网络)
2021-04-02 本文已影响0人
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4.1.1网络层概述
![](https://img.haomeiwen.com/i6491424/71b2480b920316eb.png)
4.1.2数据交换方式
![](https://img.haomeiwen.com/i6491424/010cc63ba9e299ea.png)
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![](https://img.haomeiwen.com/i6491424/07b5fee03c7a95f2.png)
报文交换:串行方式
分组交换:并行方式
![](https://img.haomeiwen.com/i6491424/007625bed4dd2f5f.png)
4.1.3数据报和虚电路
![](https://img.haomeiwen.com/i6491424/73f363c2b8f0898e.png)
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![](https://img.haomeiwen.com/i6491424/59b462db26a57e04.png)
4.2路由算法及路由协议
![](https://img.haomeiwen.com/i6491424/bc82225a6dab329a.png)
![](https://img.haomeiwen.com/i6491424/bfa68669c7bef3e4.png)
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![](https://img.haomeiwen.com/i6491424/1c85692b78a9da37.png)
4.3.1 IP数据报格式
![](https://img.haomeiwen.com/i6491424/dcf3a1545a735849.png)
![](https://img.haomeiwen.com/i6491424/ae3d832813af03fb.png)
![](https://img.haomeiwen.com/i6491424/ce06266e5fb7a887.png)
4.3.2 IP数据报分片
![](https://img.haomeiwen.com/i6491424/6f25a040bc8be090.png)
![](https://img.haomeiwen.com/i6491424/948f5d52a0b68824.png)
![](https://img.haomeiwen.com/i6491424/4af18ce258e7ae6e.png)
![](https://img.haomeiwen.com/i6491424/56b75489d6f0fafa.png)
4.3.3 IPV4地址
![](https://img.haomeiwen.com/i6491424/c53ef69bd3b4fcf3.png)
![](https://img.haomeiwen.com/i6491424/fb83c1d63a261e2a.png)
![](https://img.haomeiwen.com/i6491424/5e1d927ce5f70d9d.png)
![](https://img.haomeiwen.com/i6491424/18fee2cfe2778a95.png)
![](https://img.haomeiwen.com/i6491424/444bb0ab3c0321b6.png)
![](https://img.haomeiwen.com/i6491424/a132e4b051bf4dcb.png)
![](https://img.haomeiwen.com/i6491424/a518a2dfc4262f85.png)
4.3.4网络地址转换NAT
![](https://img.haomeiwen.com/i6491424/4da3b2e6a0bb3e52.png)
![](https://img.haomeiwen.com/i6491424/f9c76761130eda86.png)
4.3.5子网划分和子网掩码
![](https://img.haomeiwen.com/i6491424/ac09c73f5db463fd.png)
![](https://img.haomeiwen.com/i6491424/3fa6ae0f82649da6.png)
![](https://img.haomeiwen.com/i6491424/681c786083cb741d.png)
![](https://img.haomeiwen.com/i6491424/33b88364bb7c9ad0.png)
![](https://img.haomeiwen.com/i6491424/86a7ac3a97b97fd3.png)
![](https://img.haomeiwen.com/i6491424/a380db389ac17b05.png)
![](https://img.haomeiwen.com/i6491424/b6ef00bebf95d779.png)
4.3.6无分类编址CIDR
![](https://img.haomeiwen.com/i6491424/1c4dda8b2afaadc8.png)
![](https://img.haomeiwen.com/i6491424/1874d3f3eaf4ebbd.png)
4.3.7ARP协议
![](https://img.haomeiwen.com/i6491424/3924b7b308572aae.png)
![](https://img.haomeiwen.com/i6491424/83e75f05a7708246.png)
![](https://img.haomeiwen.com/i6491424/5a0ffc87783c510c.png)
4.3.8 DHCP协议
![](https://img.haomeiwen.com/i6491424/d987628820f69cdd.png)
![](https://img.haomeiwen.com/i6491424/ba8225ffac89380f.png)
4.3.9 ICMP协议
![](https://img.haomeiwen.com/i6491424/8a99b4c664a36c13.png)
![](https://img.haomeiwen.com/i6491424/40a23aae5397b47e.png)
![](https://img.haomeiwen.com/i6491424/8ab3f8df1a6bd9ad.png)
![](https://img.haomeiwen.com/i6491424/b1244da545357f79.png)
![](https://img.haomeiwen.com/i6491424/3cab9c03d24d1f0a.png)
![](https://img.haomeiwen.com/i6491424/a1e77220208e1d09.png)
![](https://img.haomeiwen.com/i6491424/3efbc7702cd9c489.png)
4.4 IPV6
![](https://img.haomeiwen.com/i6491424/55bd6d49e9046a7e.png)
![](https://img.haomeiwen.com/i6491424/a9bd0e5615add394.png)
![](https://img.haomeiwen.com/i6491424/43354e8369958e00.png)
![](https://img.haomeiwen.com/i6491424/238cd1006a843bfc.png)
![](https://img.haomeiwen.com/i6491424/b72ce9970b52d8cf.png)
![](https://img.haomeiwen.com/i6491424/0a27508cdc99c617.png)
![](https://img.haomeiwen.com/i6491424/25c029f5126f760f.png)
4.5.1RIP协议与距离向量算法
![](https://img.haomeiwen.com/i6491424/2df99b402cd6d443.png)
![](https://img.haomeiwen.com/i6491424/7f2930a5f3fb7b64.png)
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![](https://img.haomeiwen.com/i6491424/8dec8b825af402e2.png)
4.5.2OSFP协议及链路状态算法
![](https://img.haomeiwen.com/i6491424/8cfe1095770f10a0.png)
![](https://img.haomeiwen.com/i6491424/84ec367004c297df.png)
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![](https://img.haomeiwen.com/i6491424/7292d83ba8df76a4.png)
![](https://img.haomeiwen.com/i6491424/d133abb863f72e11.png)
4.5.3BGP协议
![](https://img.haomeiwen.com/i6491424/c00501deacda3630.png)
![](https://img.haomeiwen.com/i6491424/783b1cd9db07249a.png)
![](https://img.haomeiwen.com/i6491424/9f07fb5a714d5dd4.png)
![](https://img.haomeiwen.com/i6491424/7628dbefb5d5da92.png)
![](https://img.haomeiwen.com/i6491424/76c44270f8765f83.png)
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![](https://img.haomeiwen.com/i6491424/3731e7e4399f3c04.png)
![](https://img.haomeiwen.com/i6491424/2e3cf8f1491967f9.png)
![](https://img.haomeiwen.com/i6491424/a53759b2a97070a6.png)
![](https://img.haomeiwen.com/i6491424/af5540934ff07a73.png)
4.6 IP组播
![](https://img.haomeiwen.com/i6491424/8bb996ee0ca121ca.png)
![](https://img.haomeiwen.com/i6491424/973940fdbebcdbda.png)
![](https://img.haomeiwen.com/i6491424/e7cafe69bdd0c2bd.png)
![](https://img.haomeiwen.com/i6491424/9daeefe182dbf7a0.png)
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![](https://img.haomeiwen.com/i6491424/b007d3adea3de52c.png)
![](https://img.haomeiwen.com/i6491424/b8e75582f8706130.png)
![](https://img.haomeiwen.com/i6491424/38aad82e19f84410.png)
![](https://img.haomeiwen.com/i6491424/38149878c2753e4e.png)
4.7 移动IP
![](https://img.haomeiwen.com/i6491424/d3dcaf59058c9ea9.png)
![](https://img.haomeiwen.com/i6491424/098bbc49188ce497.png)
![](https://img.haomeiwen.com/i6491424/508307c0282cd62b.png)
4.8网络层设备
![](https://img.haomeiwen.com/i6491424/0641f2c45c52a042.png)
![](https://img.haomeiwen.com/i6491424/5d6e78301add45da.png)
![](https://img.haomeiwen.com/i6491424/b69a6d6c32b11b24.png)
![](https://img.haomeiwen.com/i6491424/dc171cc23ca36f9e.png)
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