LevelOne FSW-1671 - Manual (Page 35)

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First-In-First-Out: Packets are placed into the queue and serviced in the order they
were received.
All-high-before-low(Strict priority) ： ： ： ：
All packets will be assigned to either high priority queue (Queue 2) or low priority queue
(queue 1). The packet on the low priority queue will not be forwarded until the high
priority queue is empty.
WRR mode
There are 4 priority queues for Weighted-and-round-robin (WRR) mode. When this
mode is selected, the traffic will be forwarded according to the number set in each
queue.
Example: If Q1 ~ Q4 are set to 5, 3, 2, 8, then the traffic at the specific port will go out in
the following sequence. 8 packets stored in queue 4, 2 packets in queue 3, 3 packets
stored in queue 2, 5 packets stored in queue 1, 5 packets stored in queue 1 ……