User`s guide

Overview of Virtual LANs
4-2
❑
VLANs provide extra security.
Devices within each VLAN can only communicate with member
devices in the same VLAN. If a device in VLAN
Marketing
must
communicate with devices in VLAN
Sales
, the traffic must cross a
routing device.
❑
VLANs ease the change and movement of devices.
With traditional networks, network administrators spend much of
their time dealing with moves and changes. If users move to a
different subnetwork, the addresses of each endstation must be
updated manually.
For example, with a VLAN, if an endstation in VLAN
Marketing
is
moved to a port in another part of the network, and retains its
original subnet membership; you must only specify that the new
port is in VLAN
Marketing
.