Avaya G250 Administration page 310

Configuring advanced switching
Figure 27: VLAN Overview
In virtual topological networks, the network devices can be located in diverse places around the
LAN. These devices can be in different departments, on different floors, or in different buildings.
Connection is achieved through software. Each network device is connected to a switch, and
the network manager uses management software to assign each device to a virtual topological
network. Elements can be combined into a VLAN even if they are connected to different
devices.
You can use VLANs whenever there are one or more groups of network users that you want to
separate from the rest of the network.
In the following figure, the switch has three separate VLANs: Sales, Engineering, and
Marketing. Each VLAN has several physical ports assigned to it with PCs connected to those
ports. When traffic flows from a PC on the Sales VLAN, for example, that traffic is only
forwarded out the other ports assigned to that VLAN. Thus, the Engineering and Marketing
VLANs are not burdened with processing that traffic.
310 Administration for the Avaya G250 and Avaya G350 Media Gateways