[XRT-401F] How to setup priority for different LAN port?

Each port of XRT-401F can have its own priority in the VLAN setting.
In figure below, click on LAN -> VLAN Port Settings.

Then select the port as the below yellow bar. Setup the priority accordingly, then the XRT-401F will base on the priority to process the packets.

As the figure below, port 1 and port 5 (WAN port) will have the highest priority, so, this port can be used to connect with services such as Voice.

And port 2 is with the second high priority, it can connect with services such as Video. And the rest port will have the lowest priority for normal Internet data accessing.