User guide

6-8 E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
V
IRTUAL
LAN
S
(VLAN
S
)
Figure 6-5 shows a logical diagram of the same network.
Figure 6-5: Logical diagram of tagged and untagged traffic
In Figure 6-4 and Figure 6-5:
• The trunk port on each switch carries traffic for both VLAN Marketing and VLAN
Sales.
• The trunk port on each switch is tagged.
• The server connected to port 25 on System 1 has a NIC that supports 802.1Q tagging.
• The server connected to port 25 on System 1 is a member of both VLAN Marketing
and VLAN Sales.
• All other stations use untagged traffic.
As data passes out of the switch, the switch determines if the destination port requires
the frames to be tagged or untagged. All traffic coming from and going to the server is
tagged. Traffic coming from and going to the trunk ports is tagged. The traffic that
comes from and goes to the other stations on this network is not tagged.
EW_025
*Tagged Ports
Sales
System 1
Port 25 *
Port 29 *
System 2
Slot 1, Port 1 *
Marketing
System 1
Ports 1-4 & 9-12
System 2
Slot 1, Port 2
Slot 2, Ports 1-8 & 17-24
System 1
Ports 5-8, 13-16 & 32
System 2
Slot 1, Port 3
Slot 1, Port 4
Slot 2, Ports 9-16 & 25-32