Picture server.jpg shows a screen shot of WireShark taken from a windows server machine.  

Picture qnx.jpg shows a screen of WireShark taken of the traffic on the port of a cisco switch connecte to a QNX box.  
This is done using port mirrorint. Traffic on the port is copied to another board where a laptop is running the 
wireshark session.

In server.jp line 24289 shows the penultimate packet a data transfer.  The last packet which should be Seq ( 1654677 ) 
arrives at 25572, but that's 1 second after that previous packet.  By looking at the qnx.jpg image, line 14361 shows the
 packet 1654677 was send but it seems to have been lost because 1 second latter (14997)  QNX resent that same packet.

We are looking at why the packet got lost in the first place, but I'm surprise QNX took 1 second to resent the packet.  
Is that "normal", anything we can do to shorten that time?

Both screen shot only shows the data related to the stream.