局域网交换机的配置及性能比较

交换机和集线器在外观上十分相似，而我们如何分辩它们之间的差异呢?交换机（Switch）是办公在第二层即数据链路层的一种设备，它基于MAC地址对数据帧进行转发。集线器（HUB）是一种办公在物理层的设备，它并不供应数据交换的功能。它相当于一根线缆，把各个网络节.点连接起来，而交换机却能够为任

(Switches and hubs are very similar in appearance, and how do we distinguish the difference between them? A switch is a device that works at the second layer, the data link layer, and forwards data frames based on MAC addresses. A hub (HUB) is a device that works at the physical layer, and it does not provide the function of data exchange. It is equivalent to a cable, connecting various network nodes, and the switch can be used for any)

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