What exactly is a VLAN?
A virtual (or logical) LAN is a local area network with a definition that maps workstations on some other basis than geographic location (for example, by department, type of user, or primary application). The virtual LAN controller can change or add workstations and manage loadbalancing and bandwidth allocation more easily than with a physical picture of the LAN. Network management software keeps track of relating the virtual picture of the local area network with the actual physical picture.
VLANs are considered likely to be used with campus environment networks. Among companies likely to provide products with VLAN support are Cisco, Bay Networks, and 3Com.
There is a proposed VLAN standard, Institute of Electrical and Electronics Engineers 802.10.
Dig deeper on Network Administration
Related Q&A from Amy Kucharik
Learn what network latency is in this expert response.continue reading
Learn what the true definition of a download is and whether going from one Web site to another falls under this category in this Q&A with Amy ...continue reading
In this Q&A with Amy Kucharik, learn what the difference is between a patch and a service pack.continue reading
Have a question for an expert?
Please add a title for your question
Get answers from a TechTarget expert on whatever's puzzling you.