> For the complete documentation index, see [llms.txt](https://yeasy.gitbook.io/mininet_book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yeasy.gitbook.io/mininet_book/basic_usage/network.md).

# 创建网络

Mininet 的操作十分简单，启动一个小型测试网络只需要下面几个步骤。 登录到虚拟机命令行界面，打开 wireshark，使其后台运行, 命令为 `sudo wireshark &`。

启动 Mininet，命令为`sudo mn`，则默认创建如下图所示的网络拓扑。

![默认网络拓扑](/files/-M5xU5LqIZP3-hBUC9xb)

经过短暂的等待即可进入以 `mininet>` 引导的命令行界面。 好了，从现在开始，我们就拥有了一个 1 台控制节点(controller)、一台交换(switch)、两台主机(host)的网络，并且用 wireshark 进行观测。


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