[En-Nut-Discussion] Problem with UDP sockets

[Martin Kresse]

Hi,

I think I have the same problem. I want my ethernut (the client) to 
periodically request a certain amount of data from the server, which 
will then send a couple of packets containing the data back to the 
ethernut. I found out that the server must not not send the packets out 
too fast, or otherwise the nut isn't able to keep up, and calls to 
NutUdpReceiveFrom() return with 0. The "Timeout-errors" disappeared 
after I added some delays in  the server (which renders my protocol 
useless). I believe this is due to the fact, that UDP is not only 
connectionless but also lacks any automated flow control, and Nut/Net 
(please correct me if this is wrong) buffers only a single incoming UDP 
packet.

Martin