The Click Modular Router（the following abbreviation is ＂Click＂）, is a programmable modular software router, which could be used as the Core Nodes of the network, to dispose and design a network architecture in network simulation experiment.Compared to other means of network simulation, based on Click that is easy to dispose, can be configured, as well as is the flexibility of the modular, it builds a cloud network experiment platform in the cloud computing platform, and proposes a new network simulation tools.%Click Modular Router（以下简称“Click”）是一种可编程的模块化的软件路由器，可以作为网络中的核心节点，用于网络架构部署和设计的网络仿真实验中。相比于其他网络仿真手段，基于Click的易部署、可配置、以及模块化方式的灵活性，实现了在云计算平台上搭建了云网络实验平台，并提出了一种新的网络仿真手段。
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