When the H-QoS algorithm within a port scheduler policy is configured to above-offered-allowance-control, it is possible to tune the distribution of unconsumed bandwidth for parented queues. This is achieved by applying an advanced configuration policy to the queue and configuring the following:
configure
qos
adv-config-policy
child-control
bandwidth-distribution
above-offered-allowance
unconsumed-agg-rate percent <percent-of-unconsumed-agg-rate>
delta-consumed-agg-rate percent <percent-of-delta-consumed-agg-rate>
unconsumed-higher-tier-rate percent <percent-of-unconsumed-higher-tier-rate>
delta-consumed-higher-tier-rate percent <percent-of-delta-consumed-high-tier-rate>
When above-offered-allowance-control is enabled, both queues and schedulers use the default values. Table: Default values of the percentages lists the default values for the percentages.
|
Parameter |
Default Value |
|---|---|
|
delta-consumed-agg-rate percent |
20 |
|
delta-consumed-higher-tier-rate percent |
5 |
|
unconsumed-agg-rate percent |
100 |
|
unconsumed-higher-tier-rate percent |
100 |
The percentage values can be tuned for parented queues by applying an advanced configuration policy to the queue with modified percent values.
See H-QoS algorithm selection, for information about the use of the parameters with the above-offered-allowance-control H-QoS algorithm.