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24VDSL+2Giga Ethernet Managed 4 Band VDSL IP DSLAM USER'S MANUAL Ver. A.4
Tag-based VLAN (IEEE 802.1Q VLAN)
Tagged-based VLAN is an IEEE 802.1Q specification standard. Therefore, it is possible to create a VLAN across
devices from different switch venders. IEEE 802.1Q VLAN uses a technique to insert a "tag" into the Ethernet frames.
Tag contains a VLAN Identifier (VID) that indicates the VLAN numbers.
In order to an end station to send packets to different VLANs, it itself has to be either capable of tagging packets it
sends with VLAN tags or attached to a VLAN-aware bridge that is capable of classifying and tagging the packet with
different VLAN ID based on not only default PVID but also other information about the packet, such as the protocol.
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