TRENDnet TEG-424WS User Manual page 22

Tag VLAN Setting
The IEEE802.1Q protocol defines a new format of the frame; it adds a
tag header in the original Ethernet frame, as follows:
IEEE802.1Q Tag VLAN is divided by VLAN ID (VID). On receiving
a frame, the switch checks the VID in the tag header of the frame to
decide which VLAN it belongs to. If the receiving frame doesn't
contain the tag header, the switch will assign a tag to the frame, using
the PVID of the port as its VID.
Example 3:
Create two VLAN groups for Tag ports multi-need server application setting and two
VLAN clients cannot negotiate to each other. (Asymmetric VLAN function disabled)
Tag VLAN setting example
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Step1: Set VLAN1 port1 to "Tag Port" and port 15~28 to "Not Member", then apply
setting.
Step2: Create VID 02 and set port1 to "Tag Port" and port 15~28 to "Untag Port"
member, then apply setting.
Note: The multi-need server must be support IEEE 802.1Q VLAN, the sever uplink
port is port1.
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