VTAM® issues this message during START processing or in response to a MODIFY VTAMOPTS command when the value of the TDUDIAG start option is not correct. Valid values for TDUDIAG are ALWAYS, NEVER, or a numeric value.
See the TDUDIAG start option information in z/OS Communications Server: SNA Resource Definition Reference.
Not applicable.
Not applicable.
z/OS® Communications Server SNA
You can display the module that issues a SNA message in the message by setting the MSGMOD start option to YES. See Adding the originating module to the message text for more information about the MSGMOD start option.
2
5
Not recommended.
IST2321I TDUDIAG VALUE MUST BE NUMERIC, 'ALWAYS', OR 'NEVER'