FTP data transfer over limit, connection drop failed
Explanation: Messages 470, 471, 472, 473, and 475 are a multi-line message group issued when a VFTP agent tries and fails to terminate a transfer that exceeds the configured size limit within the enforcement schedule or when there is no schedule. In addition, an exception was not made for the transfer by the user exit SFMUX002.
The option to terminate oversized transfers was set in the VFTP browser interface. See Configuration, Agents, Thresholds.
Routing for these messages depends on user exit SFMUX001. The default routing is to the agent message log, the system console, and the SFMLOG file defined in the agent job.
The default severity for message SFM0469 is W, warning, but the user exit can change it to I, informational; or E, error.
file_ type may be “DSN” for a dataset or “PATH” for an HFS file.
file_name is the name of the dataset or HFS file involved in the transfer.
local_IPv4_address and local_port refer to the IP address and port of the FTP client.
remote_IPv4_address and remote_port are the IP address and port of the FTP server. The remote port for an FTP data connection is normally 20.
connection_id is a number generated by the TCP/IP stack to uniquely identify a socket endpoint and connection on this host.
return_code and reason_code are from the EZBNMIFR stack interface when it failed to drop the connection. For details about the codes, see Action below.
Example from SFMLOG
SFM0470W FTP data transfer over limit, connection drop failed
SFM0471I DSN=BJPC1.FTP.TEST.FILE
SFM0472I LCLIP=10.14.0.1, LCLPT=1104
SFM0473I RMTIP=10.200.3.50, RMTPT=20
SFM0475I CONNID=0x00003174, RETC=0x0000006F, RSNC=0x77E800DC
Action: Message SFM0475I contains the decimal return code and reason code for the failure. Those codes are documented in SYS1.MACLIB(BPXYERNO) and cross-referenced to their names. The names assigned to the codes are documented in the IBM manual z/OS Communications Server, IP Programmer’s Guide and Reference: TCP/IP callable NMI (EZBNMIFR), TCP/IP NMI response format.