what is vlan(VLAN Concept) in hindi HD

what is vlan(VLAN Concept) in Hindi ------------------------------------------------------ A VLAN is a group of devices on one or more LANs that are configured to communicate as if they were attached to the same wire, when in fact they are located on a number of different LAN segments. Because VLANs are based on logical instead of physical connections, they are extremely flexible. tutorial by kartikey pathak