qos pq-scheduler priority

Function

The qos pq-scheduler priority command modifies the priority of PQ scheduling.

The undo qos pq-scheduler priority command cancels the priority of PQ scheduling on a subcard or restores the default priority of PQ scheduling on a board.

By default, a board has a default PQ scheduling priority of high, and a subcard has no default PQ scheduling priority.

Format

qos pq-scheduler priority { high | low } { inbound | outbound }

undo qos pq-scheduler priority { inbound | outbound }

Parameters

Parameter	Description	Value
high	High.	-
low	Low.	-
inbound	Specifies the inbound direction of an interface.	-
outbound	Specifies the outbound direction of an interface.	-

Views

Slot view

Default Level

2: Configuration level

Task Name and Operations

Task Name	Operations
qos	write

Usage Guidelines

Usage Scenario

When CIR-based congestion occurs, if PQ and non-PQ schedulings must be distinguished for FQs between SQs, set the priority of PQ scheduling to high; if PQ and non-PQ schedulings do not need to be distinguished for FQs between SQs, set the priority of PQ scheduling to low.

High: Packets conforming to the CIR and latency-sensitive packets share the priority value 0.
Low: In all queues, packets conforming to the CIR has the priority value of 1, and packets conforming to the PIR has the priority value of 3.

Example

# Set the priority of PQ scheduling to high.

<HUAWEI> system-view
[~HUAWEI] slot 1
[*HUAWEI-slot 1] qos pq-scheduler priority high inbound