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Support Port-based VLANs
Ethernet frames received on a port are sent only to ports belonging to the
same VLAN group of ports. All ports default belonging to the same VLAN
group. The VLAN information included in Ethernet frames tagged with
VLAN IDs is ignored by the switch in Port Based VLAN mode.
Support Tag-based VLAN (IEEE 802.1Q VLAN)
The IEEE 802.1Q specification is the standard for Port-based Tagging.
Therefore, it is possible to create a VLAN across devices from different switch
suppliers. IEEE 802.1Q VLAN uses a technique to insert a “tag” into the
Ethernet frames. The tag contains a VLAN Identifier (VID) that indicates the
VLAN numbers.