The address table of MAC is an important data structure in the Ethernet two-layer switch. When the switch exchanges the information, it must study and Find the MAC address with the MAC address table.

MAC地址表是以太网二层交换机中的一个重要数据结构，对MAC地址的学习和查找是实现以太网二层交换的必需功能。

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Route subsystem as a core module in OS of 3-layer-switch has new requirements in efficiency, stability and scalability.

路由子系统做为三层交换机系统软件的核心模块，在效率、稳定性与可扩展性上有了新的要求。

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That light switch introduces a middle man, a layer of separation between the action and the thing you really want to work on, which is the light.

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Gnodal acts as what is called a switch fabric, essentially an aggregator of other Layer 2 switches in the network.

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