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Chapter 4: Examples
4-18 802.1Q VLAN User’s Guide
Figure 4-11 Example 4, Isolating Traffic According to Protocol
4.4.1 Solving the Problem
Much of the existing network configuration can remain as it was for
Example 3, 1D Trunk Connection to 802.1Q VLAN Network. However,
Switch 3, Switch 5, and the devices that will make up Publication’s Grey
VLAN have been added.
Floor 1
Floor 2
Floor 3
Floor 4
1
Bridge 1 Bridge 2
Bridge 3
Red VLAN
Red VLAN
Blue VLAN
Blue VLAN
Blue VLAN
Blue VLAN
2599_18
User 802.1D Legacy Bridge 802.1Q VLAN-Aware Switch
User B
Server
2
4
3
4
1
1
2
3
Mail Server
Green VLAN
Green VLAN
Bridge 4
Red VLAN
Red VLAN
File Server
2
Grey VLAN
Grey VLAN
1
2
3
4
Printer
Publications
3
1
2
3
4
5
1
3
4
5
78
2
6
Y
Y
ellow VLAN
ellow VLAN
Green, Inc.