Number of NCFs received with reason set to "shed" (LBT-RM, LBT-RU)

- n (Int32)
- Statistics set index

Number of NCFs that have been received with the reason
code set to "shed".

When a source transport's retransmit queue and rate limiter are both at
maximum, it responds to a NAK by sending an "NCF shed", and does not
retransmit. The receiver transport should wait, then send another NAK. If this
count is high, one or more crybaby receiver transports may be clogging the
source transport's retransmit queue.
retransmission queue.
This method returns a value from the nth set of statistics
encapsulated within this object.