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C H A P T E R 5
Switch 1
802.1Q
Tagged server
Switch 2
Switch 1
Port 2
Port 8
Port 12
Virtual LANs (VLANs)
1
2
3
M
S
9
10
11
S
1
2
3
M
S
9
10
11
M
S
Figure 8: Physical diagram of tagged and untagged traffic
Figure 9 shows a logical diagram of the same network.
Marketing
Switch 2
Port 1
Port 6
Port 9
Figure 9: Logical diagram of tagged and untagged traffic
In Figure 8 and Figure 9:
•
The trunk port on each switch carries traffic for both VLAN
Marketing and VLAN Sales.
•
The trunk port on each switch is tagged.
4
5
6
S
12
13
14
M
4
5
6
M
12
13
14
Switch 1
Port 9 *
Switch 1
Port 16 *
Port 3
Switch 2
Port 5
Port 16 *
Port 11
7
8
M
15
16
= Marketing
M
= Sales
S
= Tagged port
7
8
S
15
16
Sales
Switch 2
Port 2
Port 7
Port 10
*Tagged Ports
480t_001
480t_002
93
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