D-Link DES-3226 User Manual page 77

overrides the round-robin queuing and gives the priority queue that it was set for access to the transmit buffer. The default
value of 0 combined with the default MAX. Packets value of 0 will enforce a strict scheduling for output queues. The
maximum value for MAX. Latency is 255.
NOTE: There is a small amount of additional latency introduced because the priority queue that is
transmitting at the time the MAX. Latency time expires will finish transmitting its current packet before
giving up the transmit buffer.
Configuring 802.1p User Priority
The DES-3226S allows the assignment of a User Priority to each of the 802.1p priorities.
Once you have assigned a maximum number of packets and a maximum latency to a given Class of Service on the Switch, you
can then assign this Class to each of the 8 levels of 802.1p priorities.
DES-3226S Layer 2 Fast Ethernet Switch User's Guide
Figure 6 - 47. QoS Class of Traffic
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