CCNA_4 Internetworking Devices

Hub

Not Intelligent

1 Collision Domain

1 Broadcast Domain

Bridge ?

Switch

Intelligent

Many Collisicon Domains

1 Broadcast Domain

Router

Intelligent

Many Collision Domains

Many Broadcast Domains

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原文地址：https://www.cnblogs.com/jerain6312/p/CCNA_4.html