QoS queue configuration

QoS queue configuration allows you to reduce the number of outbound queues that all switch ports will use to buffer packets for 802.1p user priorities. By default, there are eight priority queues or traffic classes. Using this feature, you can reconfigure the switch to eight-queue mode, four-queue mode, or two-queue mode, to increase the available bandwidth per queue.

Use the following commands to change the number of queues per port and display the current priority queue configuration on the switch.

Syntax: 


qos queue-config < 2-queues | 4-queues | 8-queues>

Configures the number of outbound priority queues for all ports on the switch using one of the following options: 2-queues, 4-queues, or 8-queues.

(Default: 8-queues)

CAUTION:

This command will execute a write memory followed by an immediate reboot, replacing the Startup configuration with the content of the current Running configuration.

The new configuration will:

  • Remove any previously configured bandwidth-min output settings

  • Set the new number of outbound port queues

If you select anything but ‘yes’ for this operation, the operation is aborted and a message stating Operation aborted appears.

Syntax: 


show qos queue config

Displays the current qos queue configuration.