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DHCP（Dynamic Host Configuration Protocol，动态主机配置协议）是一个局域网的网络协议，使用UDP协议工作，主要有两个用途：给内部网络或网络服务供应商自动分配IP地址，给用户或者内部网络管理员作为对所有计算机作中央管理的手段。...

《计算机网络课程设计（第2版）》——2.3节相关知识

2.3 相关知识 校验和的概念网络上的数据最终都是通过物理传输线路进行传输的，如果高层没有采用差错控制，那么物理层传输的数据可能有差错。为了保证传输数据的正确性，在物理层的基础上设计了数据链路层。设计数据链路层的主要目的就是在...

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3.3 相关知识 帧术语“帧”来源于串行线路上的通信。其中，发送者在发送数据的前后分别添加特殊的字符，使它们成为一个帧。Ethernet从某种程度上可以被看做是机器之间的数据链路层连接。首先我们来认识一下Ethernet帧结构，Ethernet V2.0...

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