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LAN networks are increasingly being divided into workgroups connected via common backbones to form virtual LAN (VLAN) topologies. VLANs enable efficient traffic separation, provide better bandwidth utilization, and alleviate scaling issues by logically segmenting the physical local-area network (LAN) infrastructure into different subnets so that packets are switched only between ports within the same VLAN. When combined with central configuration management support, VLANs facilitate workgroups and client/server additions and changes.
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