Richard, FWIW, the DTCVSW machines are not involved with data transfer at all. That's all handled by CP. The controllers are only there to manage the OSA.
Regards, Miguel Delapaz z/VM TCP/IP Development > Inactivity is not a likely problem - we are driving well over 10K > messages per second through the VSWITCH when the problem occurs. The > symptom we see is that TPF is dropping sockets due to "excessive > retransmits". My first thought was that the DTCVSW machines might be a > choke-point. I have, I think, found the answer to the question about > virtual storage. I doubled the size of the machines to no avail - > exactly same symptom at the same message rate. Following the test runs, > Q VSWITCH ALL DETAILS shows no discarded packets and no errors for any > of the IP stack machines.
