there are 0～7 priority levels can map to high or low queue.

    1.select [edit].

    2.press space key to select the priority level mapping to high or low queue.

    3.high/low queue service ration h:l : you can select the ratio of high priority packets and low priority packets.

    4.press ctrl+a go back action menu line.

    5.selcet [save] to save all configure value.