beautypg.com

Atlantis Land 10/100Mbps User Manual

Page 11

background image

5

networks, but the cost of a router, the setup and
maintenance required make routers relatively
impractical. Today switches are an ideal solution
to most kinds of local area network congestion
problems.

VLAN (Virtual Local Area Network)

A VLAN is a group of end-stations that are not constrained by

their physical location and can communicate as if
a common broadcast domain, a LAN. The
primary utility of using VLAN is to reduce
latency and need for routers, using faster
switching instead. Other VLAN utility include:

Security

Security is increased with the reduction of opportunity in

eavesdropping on a broadcast network because
data will be switched to only those confidential
users within the VLAN.

Cost Reduction

VLANs can be used to create multiple broadcast domains, thus

eliminating the need of expensive routers.

Port-based (or port-group) VLAN is the common method of

implementing a VLAN, and is the one supplied in
the Switch. Each Switch port can belong from one
to sixteen VLAN.