hwCBQoSLrCbs
1.3.6.1.4.1.43.45.1.5.25.32.1.1.2.13.1.3
Committed Burst Size.
When CIR is absolute value,
CBS value: 15000..1000000000,
default value: max(cir*1/2,15000),
Unit: bit;
When CIR is percent value,
CBS value: 50..2000,
default value: 500,
Unit: ms.