RuggedCom RS1600 Manual Do Utilizador

Página de 130
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. 
 
RuggedCom