In new network application, there is tag in the Ethernet packet. The tag
contains VLAN and priority information of the packet. This 16port Switch
can process both tagged and untagged packets at in gress ports. If there is tag in
Ethernet packets, it can transmit the packet according to the priority of the
packet in tag.
There are 4 transmit queues for each port of the 16port Switch. This 16port
Switch can transfer packets according to the priority of the packet to meet the
"Quality of Service" request in the network. It is very important for multi-
media data (for example: movie, music and voice) transfer in network.
Note: The QoS function is not configurable and it is defined in the switch
controller.