You have allocated the correct number of buffers for your distance and speed on an
extended distance link over dark fiber. However, you notice a latency issue being reported
and the port is repeatedly starved for buffer credits.
What causes this to happen?

A.
The front-end port de-bounce of 100 ms is too low.

B.
The total allocated credits are divided between the VCs.

C.
There is a large number of frames with small payload size.

D.
There is a large number of frames with full or near full payload size.