本文回顾了两种类型的所有千兆以太网交换机,即扩展能力有限的固定配置的交换机,以及具有独特介质模块的全模块基于机箱的交换机。因为这两种类型的交换机在外形、价格和性能上差异很大,所以我们把它们分为两类,并根据相应的标准评估每一类。例如,对于基于机箱的交换机,应把更多的注意力放在承担主要任务的主干特征上。而对于固定配置的交换机,着重考虑其价格。因为在长时间的运行中,这些设备将是最先成为“商品”的交换项。并且由于它们为你的网络提供了扇 This article reviews all two types of Gigabit Ethernet switches, fixed-configuration switches with limited scalability, and all-module chassis-based switches with unique media modules. Because these two types of switches vary greatly in shape, price and performance, we classify them into two categories and evaluate each of them according to the appropriate standards. For example, for chassis-based switches, more attention should be given to the backbone features that perform the major tasks. For the fixed configuration switches, focusing on its price. Because in the long run, these devices will be the first to become a “commodity” exchange. And because they provide fans for your network