A16B-1200-0201
集線器的工作特點：
集線器多用于小規模的以太網，由于集線器一般使用外接電源（有源）
，對其接收的信號有放大處理。在某些場合，集線器也被稱為“多端口
中繼器”。
集線器同中繼器一樣都是工作在物理層的網絡設備。
共享式以太網存在的弊端：由于所有的節點都接在同一沖突域中，不管
一個幀從哪里來或到哪里去，所有的節點都能接受到這個幀。隨著節點
的增加，大量的沖突將導致網絡性能急劇下降。而且集線器同時只能傳
輸一個數據幀，這意味著集線器所 有端口都要共享同一帶寬。
交換式以太網
A16B-1200-0201
聯系人：郭先生
聯系電話：18971415643《優先》
座機：027-83238871
傳真：207-61537051
QQ：810334512《優先》
A16B-1200-0201
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