A virtual lan (vlan) is a logical grouping of devices within a network that allows them to communicate as if they are on the same local network, even if they are physically connected to.. A vlan is a logical grouping of network resources connected to administratively defined ports on a switch.
-2.png "InterVLAN Routing Your Ultimate Configuration Guide for Cisco")
Vlans break a large broadcast domain into smaller broadcast domains.. Simple guide with clear examples to boost your networking skills.