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20191119

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Last updated 5 years ago

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VLAN(效能、安全)技術可將不同接口、主機、應用劃分到不同網段,並且不同的VLAN處在不同的廣播域,因此可實現廣播隔離減少泛洪。VLAN具備跨交換機,跨地理位置特性,同一VLAN的設備可處在不同交換機上。
VLAN分類
數據VLAN
語音VLAN
管理VLAN
自然VLAN(不須打標籤)
私有VLAN
cisco 交換機VLAN範圍0~4095
0,4095:系統保留
1:系統默認,VLAN,所有接口默認在VLAN1,不能刪除修改
2-1001:乙太網最常用VLAN範圍
1002-1005:用於FDDI和token ring
1006-1024:系統保留
1025-4094:拓展的乙太網VLAN