Create a two router network.
Attach a sender to one of the routers. The sender should transmit a message for every credit it is given.
Attach a receiver to the other router. grant 1 credit, accept a single message then close the connection (cleanly).
Here's the resulting output of qdstat -l for the sender link after the receiver is done:
type dir conn id id peer class addr phs cap pri undel unsett deliv presett psdrop acc rej rel mod delay rate
endpoint in 3 50 mobile test-address 0 250 0 0 0 3476 0 0 1 0 3725 0 0 0 0 0 00:00:05
That's 3476 deliv, 1 accepted, and 3725 released.
These numbers do no make sense. I would expect that the number delivered would == (accepted + released). This is not the case as delivered == (accepted + released - CAPACITY)
The trace log confirms that the tx sender has sent 3726 messages, 1 accepted the remaining released.
(The reason for the large # of released is that the rx address removal (MAU) is not propagated to the sender router until after 3726 messages have been generated)