1146 Configuring Class-of-Service
CoS queue 4, with a 50% minimum bandwidth guarantee. Lossless traffic 
classes generally use the default WRR scheduling mode as opposed to strict 
priority, to avoid starving other traffic. For example, the following commands 
assign user priority 4 to CoS queue 4 and reserve 50% of the scheduler 
bandwidth to CoS queue 4.
classofservice dot1p-mapping 4 4
cos-queue min-bandwidth 0 0 0 0 50 0 0