Chapter Summary
A VLAN is a group of computers, network printers, network servers, and other network devices that behave as if they were in a single broadcast domain. To implement VLANs in a network environment, you need a Layer 2 switch that has VLAN capability. Almost all switches sold today that are described as managed switches provide the capability to configure switch ports as members of different VLANs. However, switches that don't provide any configuration function, such as many basic, lower-end switches, don't provide this capability to configure VLANs. For example, a switch you might buy at your local computer store for a home network probably wouldn't have VLAN capability.
VLANs define broadcast domains without being constrained by ...
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