When setting the WRED discard policy, the lower limit of the flow rate marked AF21 is set to 35, the upper limit is set to 40; the lower limit of flow marked AF22 is set to 30, the upper limit is set to 40; and the lower limit of flow marked AF23 is set to 25. The upper limit is set to 40, and the drop probability when the upper limit is reached is 10%. Which priority packet can be guaranteed before congestion occurs?

When setting the WRED discard policy, the lower limit of the flow rate marked AF21 is set to 35, the upper limit is set to 40; the lower limit of flow marked AF22 is set to 30, the upper limit is set to 40; and the lower limit of flow marked AF23 is set to 25. The upper limit is set to 40, and the drop probability when the upper limit is reached is 10%. Which priority packet can be guaranteed before congestion occurs?
A . All the same
B . AF22
C . AF21
D . AF23

View Answer

Answer: A