You may receive the following error message:
DC396003 Vn Tnnn Socket error, function = RECV, errno = 1121, reason = 76650446
The socket errno and reason codes are not documented in the CA IDMS documentation.
The socket errno and reason codes in this message are documented in the z/os manual UNIX System Services Messages and Codes.
The error codes can also be found in SYS1.MACLIB in member BPXYERNO.
In this example Errno 1121 is ECONNRESET
The first 4 bytes of the reason code is the module number - 7665.
The last 4 bytes of the reason code is the real reason code, in this case 0446 which means JRSocketConDropped