Extreme Networks ExtremeWare XOS Command Reference Manual page 688

QoS Commands
Extreme switch products support explicit Class of Service traffic groupings. This category of traffic
groupings describes what is sometimes referred to as explicit packet marking, and includes:
IP DiffServ code points, formerly known as IP TOS bits
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Prioritization bits used in IEEE 802.1p packets
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All Extreme switches support the standard 802.1p priority bits that are part of a tagged Ethernet packet.
With the 11.0 version of the software on the BlackDiamond 10K switch, you can also assign parameters
to traffic ingressing the switch for minimum and maximum bandwidth and priority queuing to the
backplane.
688
ExtremeWare XOS 11.3 Command Reference