说明：  高性能网吧的三层交换机解决方案 网络接入方式一经确定，高性能网吧的实现其实就是局域网的良好网络结构设计和网络设备的选型了。我们的目标是：使网络的速度最快。要实现它，第一个是：网络的结构。我们采用以下三个关键技术。
(Internet cafe s three-tier high-performance switch solution for network access is determined, high-performance Internet cafes realize is actually a good LAN network architecture design and selection of network equipment. Our goal is: to enable the fastest networks. To achieve it, first one is: the structure of the network. We adopt the following three key technologies.)