We are in the process to migrate our XCOM Open SSL to IBM System SSL. In that process we ran a test job TYPE=SCHEDULE, and tried to transmit some files, from our XCOM with SSLPORT= 08045, to the remote XCOM using IBM System SSL and SSLPORT= 08049. The job failed with the following error message:
XCOMM1510E System SSL: gsk_secure_socket_init: RC = 406: Reason = Error while reading or writing data
XCOMM0093E ERROR ACTIVATING SESSION - SESSION NOT ESTABLISHED
Release : 12.0
Component : XCOM Data Transport for z/OS
The problem was caused by Firewall definitions. Once the Firewall definition was corrected the transfer was successful.
Here is the meaning of the System SSL RC=406 per IBM:
406 Error while reading or writing data.
Last Updated: 2021-06-25
An I/O error was reported while the System SSL run time was reading or writing data.
Ensure that there are no network errors. Collect a System SSL trace containing the error and then contact your service representative if the error persists.