Breaking up a larger network into a number of smaller ones is called network segmentation, and it's accomplished using routers, switches, and Bridges.
把一个大的网络分成许多子网络称为网络分段，可使用路由器、交换机和网桥来完成。
Switches operate at much higher speeds than bridges and can support new functionality, such as virtual LANs .
交换器的运作速度比桥接器更高且能支援新的功能，诸如虚拟区域网路。
Bridges (and switches) forward frames from one interface to another based on the destination MAC address.
网桥(和交换机)根据目的MAC地址将帧从一个接口转发到另一个接口。
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