D-Link DES-3326SR User Manual page 272

DES-3326SR Layer 3 Fast Ethernet Switch User's Guide
MAX. Latency is a priority queue timer. When it expires, it
overrides the round-robin and gives the priority queue that it
was set for access to the transmit buffer.
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 Default Priority
The switch allows the assignment of a default 802.1p priority to
each port on the switch.
Click on the Default Priority link:
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