AT-GS950/48PS Switch Web Interface User’s Guide
4.For each Traffic Class whose queue you want to change, click on the Queue (0, 1, 2, or 3) radio button that applies to your configuration.
5.After you have completed this mapping process, select Enable in the QoS Status field,
6.Click Apply.
7.From the main menu on the left side of the page, select Save Configuration to Flash to permanently save your changes.