broadcast domain

基本解释

To further aid in scalable management, each SU has its own broadcast domain (SU-to-SU and SU-to-World communications are routed -- check for bottlenecks).
爲了進一步幫助可伸縮琯理，每個 SU 有自己的廣播域（路由 SU-to-SU 和 SU-to-World 通信 —— 檢查瓶頸）。
So a bridge splits the network into separate collision domains, but all the packets still get to go everywhere, so the bridged network is still a single broadcast domain.
所以網橋將網絡分割爲獨立的沖突域，但所有的數據封包依然在整個網絡裡到処跑，所以使用了網橋的網絡依然是個單一的廣播域。
VLANs provide the ability to create virtual networks across a distributed network so that disparate hosts (on independent networks) appear as if they were part of the same broadcast domain.
VLANs 提供創建跨分佈網絡的虛擬網絡的能力，這樣就會出現不同的主機（在獨立的網絡上），如果它們是相同廣播域的一部分。

The BCM7445 also features web domain security, an industry leading hardware security oversight to separate Internet services from premium broadcast content.
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