z/VM is at level 5.4. Connectivity is through vswitch layer2 and an OSA- Express3 10 GbE adapter. When using FTP to move a file between two VMs I
am getting transfer rates of 16.0 - 17.0 Kbytes/sec. I ran a trace on the VM where the FTPSERV is running and see the following messages once the data session is established DTCREQ034I DoSendB not signalling TcpDown for conn 1002 DTCPRI181I PrevFrustrated: Frustrated TCB queue DTCPRI182I NextFrustrated: Frustrated TCB queue DTCPRI199I Sender frustration level: Frustrated but am not able to locate where messages DTCREQ034I, DTCPRI181I, DTCPRI182I or DTCPRI199I are documented. Any help would be greatly appreciated. Thanks.
