Add a QoS

Procedure

In the navigation menu, select Device Inventory.
In the Devices page, click anywhere in the required device row except the Actions column () to proceed to the device Overview page.
In the Device Config menu, select Policies and Configuration > QoS > Add QoS.
In the Name field, enter a name.
In the Description field, enter the description.
In the Queue field, select the queue priority.

The highest queue priority is q7 and q0 is the lowest queue priority.
Select Save.