The increasing link speed highlights the inefficiencies of the existing packet capturing engine, which is the critical part of network monitoring.

随着网络速度的增加，作为网络监测关键部分的报文捕获引擎暴露出了在性能上的不足。

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This paper analyzes packet capturing principle in detail combined with the structure and functions of the software and introduces its application in designing a network security and watch system.

文中结合该软件包的结构与功能对包捕获原理进行了详细的分析，并介绍了其在网络安全监控系统中的应用。

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Depending on the nature of the problem, it is sometimes good practice to run a tcpdump for a period of time while capturing packet information to a file using the -w switch.

根据问题的性质，有时候最好运行tcpdump一段时间，同时使用- w选项把数据包信息捕捉到文件中。

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