RuggedCom RS400 用户手册

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VLANs 
 
 
ROS™  v3.5 
176 
RS400 
6.2.2 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.  
6.2.3 Reduced Hardware 
Without VLANs, traffic domain isolation requires using separate bridges for separate networks. 
VLANs eliminate the need for separate bridges. 
The number of network hosts may often be reduced. Often a server is assigned to provide 
services for independent networks. These hosts may be replaced by a single multi-homed host 
supporting each network on a its own VLAN. This host can perform routing between VLANs. 
 
 
Figure 116: Inter-VLAN Communications