Asus GigaX2008EX - Manual (Page 32)

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GigaX2008EX L2 Managed Switch User Manual
4.5.6 Tagged VLAN
You can set up to 256 VLAN groups and show VLAN group in this page. There
is a default VLAN created by the switch. It cannot be removed at all. This feature
prevents the switch from malfunctions. You can remove any existed VLAN
except the default VLAN.
You can assign the port to be a tagged port or an untagged port by toggling the
port button. There are three types of button displays:
“U” type: untagged port that will remove VLAN tags from the transmitted
packets.
“T” type: All packets transmitted from this port will be tagged.
“Blank” type: This port is not a member of the VLAN group.
If one untagged port belongs to two or more VLAN groups at the same time, it
will confuse the switch and cause flooding traffics. To prevent it, the switch only
allows one untagged port belongs to one VLAN at the same time. That is, the
untagged port belongs to the VLAN group which is called “PVID” and configured
in the “Default Port VLAN & CoS” page. If you want to assign an untagged port
from one VLAN to another, you have to remove it from the original VLAN, or
change it to be tagged in the original VLAN first.
Show VLAN: select the existed VLAN to display or select “Add a new VLAN”
to create a new VLAN group
Name: the VLAN name
VLAN ID: this field requires user to enter the VLAN ID when a new VLAN is
created
Remove VLAN: Remove a existed VLAN. This field disappears in VLAN
creation page.
Click on OK to save the configuration. To make the configuration effective, go to
Save Configuration page, then click on Save.
Figure 23. Tagged VLAN