The calculated weight in a traffic control profile is mapped
to hardware weight, but the hardware only supports a limited WFQ profile.
The weights are rounded to the nearest hardware weight according to
the values in Table 63.
Table 63: Rounding Configured
Weights to Hardware Weights
Traffic Control Profile Number
Number of Traffic Control Profiles
Weights
Maximum Error
1–16
16
1–16 (interval of 1)
50.00%
17–29
13
18–42 (interval of 2)
6.25%
30–35
6
45–60 (interval of 3)
1.35%
36–43
8
64–92 (interval of 4)
2.25%
44–49
6
98–128 (interval of 6)
3.06%
50–56
7
136–184 (interval of 8)
3.13%
57–62
6
194–244 (interval of 10)
2.71%
63–63
1
255–255 (interval of 11)
2.05%
From the table, as an example, the calculated weight of 18.9
is mapped to a hardware weight of 18, because 18 is closer to 18.9
than 20 (an interval of 2 applies in the range 18–42).
