What is a Virtual LAN?
The same physical network can have its traffic divided into two networks using virtual LANs, or VLANs. Imagine establishing two independent LANs in the same room, each with its own router and Internet connection. Similar to that, but with only one router and one Internet connection required, VLANs divide networks virtually rather than physically.
VLANs are beneficial for network management, particularly in very large LANs. Administrators may much more simply control the network by segmenting it. (Subnets, another method of segmenting networks for increased efficiency, differ greatly from VLANs.)
LAN Full Form
A Local area network (LAN) is a network that is used to link devices in a single office, building, or campus of up to a short distance. LAN is restricted in size. In LAN networks internet speed is from 10 Mbps to 100 Mbps (But now much higher speeds can be achieved). The most common topologies used in LAN networks are bus, ring, and star.