Here you can select the schedule mode for the switch. 0. SP-Mode: Strict-Priority Mode. In this mode, the queue with higher priority will occupy the whole bandwidth. Packets in the queue with lower priority are sent only when the queue with higher priority is empty. 1. WRR-Mode: Weight Round Robin Mode. In this mode, packets in all the queues are sent in order based on the weight value for each queue. You can also config the TC queues' weight with values 1-127. 2. SP+WRR-Mode: Strict-Priority + Weight Round Robin Mode. In this mode, this switch provides two scheduling groups, SP group and WRR group. Queues in SP group and WRR group are scheduled strictly based on strict-priority mode while the queues inside WRR group follow the WRR mode. In SP+WRR mode, the largest TC queue is in the SP group and the others belong to the WRR group and You can also config the TC queues' weight with values 0-127, value 0 means this TC queue is in SP group. In this way, when scheduling queues, the switch allows TC queues in SP group to occupy the whole bandwidth following the SP mode and the other TC queues in the WRR group will take up the bandwidth according to their ratio. 3. Equ-Mode: Equal-Mode. In this mode, all the queues occupy the bandwidth equally.