D-Link DSL-2750 User Manual page 55

Section 3 - Configuration
802.1p Remark:
Select this option to Activate/Deactivated the 802.1p. IEEE
802.1p establishes eight levels of priority (0 ~ 7). Although
network managers must determine actual mappings, IEEE has
made broad recommendations.
Seven is the highest priority which is usually assigned to
network-critical traffic such as Routing Information Protocol
(RIP) and Open Shortest Path First (OSPF) table updates. Five
and six are often for delay-sensitive applications such as
interactive video and voice. Data classes four through one
range from controlled-load applications such as streaming
multimedia and business-critical traffic - carrying SAP data,
for instance - down to "loss eligible" traffic. Zero is used as a
best-effort default priority, invoked automatically when no
other value has been set.
Queue #: Select Low, Medium, High or Highest.
D-Link DSL-2750B Wireless N300 ADSL2+ Modem Router User Manual 51