Chapter 35: class of service commands, Priority commands (layer 2), Table 35-1 priority – Asante Technologies 40240/40480-10G User Manual

Page 613: Commands, Table 35-2

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queue mode

This command sets the queue mode to strict priority or Weighted Round-Robin
(WRR) for the class of service (CoS) priority queues. Use the no form to restore the
default value.

Syntax

queue mode {strict | wrr}
no queue mode

strict - Services the egress queues in sequential order, transmitting all

traffic in the higher priority queues before servicing lower priority queues.

wrr - Weighted Round-Robin shares bandwidth at the egress ports by using

scheduling weights 1, 2, 4, 6, 8, 10, 12, 14 for queues 0 - 7 respectively.

Default Setting

Weighted Round Robin

Command Mode

Global Configuration

Command Usage

You can set the switch to service the queues based on a strict rule that
requires all traffic in a higher priority queue to be processed before lower
priority queues are serviced, or use Weighted Round-Robin (WRR) queuing
that specifies a relative weight of each queue. WRR uses a predefined relative
weight for each queue that determines the percentage of service time the
switch services each queue before moving on to the next queue. This
prevents the head-of-line blocking that can occur with strict priority queuing.

Example

The following example sets the queue mode to strict priority service mode:

Console(config)#queue mode strict

Console(config)#

Related Commands

queue bandwidth (35-4)
show queue mode (35-5)

35-2

Class of Service Commands

35

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