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VLAN(Virtual Local Area Network):虚拟局域网 VLAN是与地理位置无关的局域网的一个广播域。由一个工作站发送的广播信息帧只能发送到具有相同虚网号的其它站点。其它VLAN的成员收不到这些广播帧。网络管理员可以把相关的客户和服务器构成不同的虚网,同一虚网内客户和服务器可以方便地频繁通信,不同的虚网之间通过路由器连接,滤出虚网之间不必要的广播信息。这样,优化了网络带宽,减少了网络交通量,同时,也确保了网络信息的安全。
VLAN (Virtual Local Area Network): Virtual LAN VLAN is a geographical area independent of the LAN broadcast domain. Broadcast information frames sent by one workstation can only be sent to other sites with the same virtual network number. Members of other VLANs can not receive these broadcast frames. The network administrator can make the related clients and servers form different virtual networks. The clients and servers in the same virtual network can conveniently and frequently communicate with each other, and the different virtual networks are connected through routers to filter unnecessary broadcast information between virtual networks . In this way, the network bandwidth is optimized, the network traffic is reduced, and the network information is also ensured.