Service SAP QoS Policy Command Reference
368 Quality of Service Guide
The no form of the command returns all queues created with the queue-id by association with the QoS
policy to the default PIR and CIR parameters (max, 0).
Parameters pir-rate — Defines the administrative PIR rate, in kilobits, for the queue. When the rate command
is executed, a valid PIR setting must be explicitly defined. When the rate command has not
been executed, the default PIR of max is assumed.
Fractional values are not allowed and must be given as a positive integer.
The actual PIR rate is dependent on the queue’s adaptation-rule parameters and the actual
hardware where the queue is provisioned.
Values 1 to 100000000, max
Default max
wred-queue
Syntax wred-queue [policy slope-policy-name] [mode {native | pool-per-queue}] [slope-usage
{default | exceed-low}]
no wred-queue
Context config>qos>sap-egress>queue
Description This command allows the configuration of WRED per queue with the following options:
• Native hardware WRED
This uses the hardware per queue WRED capabilities of the FP3 and is configured with the
native keyword.
• Pool per queue WRED
This implements each queue in its own pool and uses the WRED capabilities of the pool to
provide WRED per queue. This is supported on both FP2 and later hardware and is configured
with the pool-per-queue keyword.
Native Hardware WRED
When the wred-queue mode native command is configured, the queue uses the WRED capabilities
of the FP3. In this case the out and exceed profile traffic map to the low and exceed WRED slopes
specified within the slope policy, and the in profile traffic uses the MBS drop tail; this requires the
slope-usage to be configured as exceed-low. The instantaneous queue depth is compared against the
low and exceed slopes so the time average factor in the slope policy is ignored.
When a policy is not explicitly defined, the default slope policy is used.
When native mode is enabled for a queue, the hi-low-prio-only and high-prio-only commands are
ignored; traffic mapped to a slope which is shutdown will use the MBS drop tail.
This is only supported on FP3 hardware and is ignored on FP1 and FP2 hardware.
The no form of the command restores the queue default congestion control behavior to the queue.
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