LevelOne GTL-2691 - Manual (Page 279)

C HAPTER 10 | Class of Service
Layer 2 Queue Settings
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Figure 125: Setting the Queue Mode (Strict and WRR)
M APPING C O S V ALUES
TO E GRESS Q UEUES
Use the Traffic > Priority > CoS to Queue page to specify the hardware
output queues to use for Class of Service (CoS) priority tagged traffic.
The switch processes Class of Service (CoS) priority tagged traffic by using
eight priority queues for each port, with service schedules based on strict
priority, Weighted Round-Robin (WRR), or a combination of strict and
weighted queuing. Up to eight separate traffic priorities are defined in IEEE
802.1p. Default priority levels are assigned according to recommendations
in the IEEE 802.1p standard as shown in the following table.
The priority levels recommended in the IEEE 802.1p standard for various
network applications are shown in Table 15 . However, priority levels can be
mapped to the switch’s output queues in any way that benefits application
traffic for the network.
Table 14: IEEE 802.1p Egress Queue Priority Mapping
Priority 0 1 2 3 4 5 6 7
Queue 2 0 1 3 4 5 6 7