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Support 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.
Support Protocol-based VLAN
In order for 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.
24+2G switch will support protocol-based VLAN classification by means of both built-in knowledge of
layer 2 packet formats used by selected popular protocols, such as Novell IPX and AppleTalk’s Ether
Talk, and some degree of programmable protocol matching capability.