Cabletron Systems 802.1Q - Manual (Page 71)

Example 2, VLANs Across Multiple Switches
802.1Q VLAN User’s Guide 4-5
Figure 4-3 Example 2, VLANs Across Multiple Switches
4.2.1 Solving the Problem
To solve the problem in this example, the users are assigned to VLANs
using Switch 4 and Switch 2 as shown in
Figure 4-3 . Redco users are
assigned to the Red VLAN and Blue Industries users to the Blue VLAN.
The following information shows how Switch 4 and Switch 2 are
configured to create the two VLANs to isolate the users of the two
companies from one another on the network using the existing
infrastructure.
Floor 1
Floor 2
Floor 3
Floor 4
1
Bridge 1 Bridge 2
Bridge 3 Bridge 4
Redco
Redco
Blue Industries
Red VLAN Red VLAN
Red VLAN Red VLAN
Blue VLAN Blue VLAN
Blue VLAN Blue VLAN
22632_13
User 802.1D Legacy Bridge 802.1Q VLAN Aware Switch
File Server
User A
File Server
2
Blue Industries
4
2
3
4
1
2
3
File Server