Administrative convenience, Reduced hardware – RuggedCom RS1600 User Manual
Page 42
RuggedSwitch
™ User Guide
Switch 2
Switch 3
VLAN 3
VLAN 4
VLAN 5
VLAN 2
Switch 1
Figure 18: Multiple and Overlapping VLANs
Administrative Convenience
VLANs enable equipment moves to be handled by software reconfiguration
instead the alternative, cable management. When a host’s physical location is
changed, its connection point is often changed as well. With VLANs, the host’s
VLAN membership and priority are simply copied to the new port.
Reduced Hardware
Without VLANs, traffic domain isolation requires using separate bridges for
separate networks. VLANs eliminate the need for separate bridges.
The number of networks hosts may often be reduced. Often a server is assigned
to provide services for independent networks. These hosts may be replaced by a
single multihomed host supporting each network on a its own VLAN. This host
can perform routing between VLANs.
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