Set 3 to 10 times of the CIR configured with this PVC.
The threshold value for starting to send Normal and
Low Priority traffic is calculated based on physical
line speed. Setting this object to 3 to 10 times of CIR
value will provide more chance to the Normal and Low
Priority traffic so that it will help the Normal and Low
Priority traffic of low speed links over high speed
physical line from starvation such as 56Kbps and 65Kbps
lines over HSSI.