Gateway data transfer problem with large data blocks

Hi,

We currently have a problem with a Gateway service whilst transferring large amounts of data (>0.25GByte), intermittently during the transfer the transfer stops and eventually times-out, the performance-trace for a transfer looks identical for  BOTH a successful/non-successful transfer.

When attempting to open the payload-trace, SAPGUI terminates and a short-dump is produced, thus no further information  can be obtained.

There are no errors (-which we can find) on the Gateway when this problem occurs.

Has anyone experienced similar problems? Is it possible to complete a TCP/IP trace (– without causing further problems) on a production system?

I notice there is a parameter on the GW to test for network fragmentation (gw/nifragtest) on the network layer, could this help?

Any other suggestions?

thanks and regards,

Richard