RuggedCom RS400 manual Administrative Convenience, Reduced Hardware

VLANs

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

ROS™ v3.5 176 RS400