Autoinstall templates for APPC connections
The purpose of a template is to provide CICS® with a definition that can be used for all connections with the same properties. You customize the supplied autoinstall control program, DFHZATDY, to select an appropriate template for each new connection, depending on the information it receives from the z/OS® Communications Server for SNA.
A template consists of a CONNECTION definition and its associated SESSIONS definitions. You should have a definition installed for each different set of session properties you are going to need.
Any installed connection definition can be used as a template, but for performance reasons, your template should be an installed connection definition that you do not use. The definition is locked while CICS is copying it, and if you have a very large number of sessions autoinstalling, the delay may be noticeable.