Planet WSD-800 User Manual page 51

6. Click on the "Close" button and back to the Port-based VLAN main page.
The "Show VLAN Member" button is to list the valid VLANs. You can also remove the added VALN by click on
this button.
802.1Q VLAN Configuration
There are up to 256 configurable VLAN groups. By default when 802.1Q is enabled, all ports on the switch belong
to default VLAN (VID 1). The default VLAN cannot be deleted.
Understand nomenclature of the Switch
Tagging and Untagging
Every port on an 802.1Q compliant switch can be configured as tagging or untagging.
Tagging: Ports with tagging enabled will put the VID number, priority and other VLAN information into the
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header of all packets that flow into those ports. If a packet has previously been tagged, the port will not alter
the packet, thus keeping the VLAN information intact. The VLAN information in the tag can then be used by
other 802.1Q compliant devices on the network to make packet-forwarding decisions.
Untagging: Ports with untagging enabled will strip the 802.1Q tag from all packets that flow into those ports.
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If the packet doesn't have an 802.1Q VLAN tag, the port will not alter the packet. Thus, all packets received
by and forwarded by an untagging port will have no 802.1Q VLAN information. (Remember that the PVID is
User's Manual of WSD-800 / WGSD-910/WGSD-1022C
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