cir-parent-priority

Function

The cir-parent-priority command configures a scheduling priority and weight for a flow queue with a specified CoS in a flow queue profile in enhanced 8-CoS mode.

The undo cir-parent-priority command restores the default scheduling priority and weight for a flow queue with a specified CoS in a flow queue profile in enhanced 8-CoS mode.

For the default parameter values of a flow queue profile in enhanced 8-CoS mode, see the table in the following usage scenario.

Format

cir-parent-priority cir-priority-value [ weight cir-weight-value ] pir-parent-priority pir-priority-value [ weight pir-weight-value ]

undo cir-parent-priority cir-priority-value [ weight cir-weight-value ] pir-parent-priority pir-priority-value [ weight pir-weight-value ]

Parameters

Parameter	Description	Value
weight cir-weight-value	Specifies a CIR traffic scheduling weight.	The value is an integer ranging from 1 to 100. A larger value indicates a higher weight.
weight pir-weight-value	Specifies a PIR traffic scheduling weight.	The value is an integer ranging from 1 to 100. A larger value indicates a higher weight.
pir-parent-priority pir-priority-value	Specifies a PIR traffic scheduling priority.	The value is an integer ranging from 1 to 3. A smaller value indicates a higher priority. A PIR traffic scheduling priority must be greater than a CIR traffic scheduling priority.
cir-parent-priority cir-priority-value	Specifies a CIR traffic scheduling priority.	The value is an integer ranging from 0 to 2. A smaller value indicates a higher priority.

Views

cos

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
qos	write

Usage Guidelines

Usage Scenario

You can configure scheduling parameters for eight priority flow queues in a flow queue profile in enhanced 8-CoS mode. To configure a scheduling priority and weight for a flow queue with specified priorities, run the cir-parent-priority command. After the configuration is complete, traffic in the flow queue is sent to the parent scheduler with a specified priority for scheduling. The scheduling weights take effect only when the scheduling mode of a user queue is WFQ.

Table 1: The default parameter values of a flow queue profile in enhanced 8-CoS mode

Queue	The Priority of CIR	The Priority of PIR	Weight	CIR	PIR	Drop Mode
cos 0	1	3	10	None	None	Tail drop
cos 1	1	3	10	None	None	Tail drop
cos 2	1	3	10	None	None	Tail drop
cos 3	1	3	15	None	None	Tail drop
cos 4	1	3	15	None	None	Tail drop
cos 5	0	2	20	None	None	Tail drop
cos 6	0	2	20	None	None	Tail drop
cos 7	0	2	20	None	None	Tail drop

Prerequisites

A flow queue profile in enhanced 8-CoS mode has been created, and a queue priority sub-view has been displayed.

Precautions

Only CR5DNPU48071/CR5DNPU1TM71 boards support a flow queue profile in enhanced 8-CoS mode.

Example

# In the queue with CoS 0, set a scheduling priority and weight to 0 and 10 respectively for CIR traffic, and to 1 and 5 respectively for PIR traffic.

<HUAWEI> system-view
[~HUAWEI] flow-queue test 8cos-enhance-mode
[*HUAWEI-flow-queue-template-test] cos 0
[*HUAWEI-flow-queue-template-test-cos0] cir-parent-priority 0 weight 10 pir-parent-priority 1 weight 5