Designing communications using the ISC protocol

The following topics provide an overview of subsystem-to-subsystem communications that use the ISC protocol.

Determining output protocols
Traffic on the ISC session is controlled by the VTAM® protocols associated with the message.
Accessing existing application programs with ISC
During an ISC session, you can access application programs written prior to your installation's support of ISC.
Statically defining an ISC node to IMS
A subsystem that is statically defined at system definition to IMS as an ISC node appears to IMS to be a terminal and to an IMS application program to be one or more logical terminals (LTERMs). Thus, an ISC node is defined using those system definition macros applicable to defining other VTAM terminals.
Choosing parameters: system design considerations
The following topics further describe the parameters of the COMM, TERMINAL, NAME, and SUBPOOL macro statements.
System definition summary
SFIMS from the previous example can be defined to NYIMS as shown in the following example.

Parent topic: Intersystem Communication (ISC)