DELL N3000 User Manual

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Configuring VLANs
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Figure 21-26 shows the network topology for this example. As the figure 
shows, there are two switches, two file servers, and many hosts. One switch 
has an uplink port that connects it to a layer 3 device and the rest of the 
corporate network.
Figure 21-26. Network Topology for Port-Based VLAN Configuration
The network in Figure 21-26 has the following characteristics:
• Each connection to a host represents multiple ports and hosts.
• The Payroll and File servers are connected to the switches through a LAG.
• Some of the Marketing hosts connect to Switch 1, and some connect to 
Switch 2.
• The Engineering and Marketing departments share the same file server.
• Because security is a concern for the Payroll VLAN, the ports and LAG that 
are members of this VLAN will accept and transmit only traffic tagged 
with VLAN 400.
• The Sales staff might connect to a port on Switch 1 or Switch 2.
VLAN 400
Payroll
Payroll 
Server
Shared File 
Server
Payroll 
Hosts
Marketing 
Hosts
Engineering 
Hosts
Switch 1
Switch 2
VLAN 100
Engineering
VLAN 200
Marketing
LAN/WAN