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by higher latencies. Routers have also been used to segment local
area 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 it's a common
broadcast domain, a LAN. The primary use of VLANs is to
reduce latency and need for routers, using faster switching instead.
Other VLAN utility include the following:
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 for 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 eight VLANs.
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