在每个区域网路区段中，选定一个最靠近根交换器的的交换器。
Designate one of the switches as the closest one to the root, for each LAN segment.
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。
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。
Switches operate at much higher speeds than bridges and can support new functionality, such as virtual LANs .
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