# Executing CICS Interface IVPs

After installing and activating CICS Interface, you should execute the CICS interface IVPs to verify your installation. By performing the sample IVP installation steps and tests, you can verify the bidirectional communication from and to your IBM CICS system with Substation ES.

Depending on which messaging protocol you use, you can execute an IVP to test the corresponding ESB endpoint. For more details, see the TIBCO Substation ES Configuration and Resources manual.

## Rendezvous IVP

If you execute the IVP to test the Rendezvous ESB endpoint, the `SXCRIRSL` member initiates a Rendezvous sender listener, which sends messages to the Substation ES region and waits for replies from Substation ES. Once the CICS application has executed and sent a reply, the messages are consumed and reported by this Substation ES IVP Rendezvous sender listener. Errors are also reported.

Data Set: `USERHLQ.JCL`

Member: `SXCRIRSL`

## EMS IVP

If you execute the IVP to test the EMS ESB endpoint, the `SXCRIJSL` member initiates an EMS sender listener, which sends messages to the Substation ES region and waits for replies from Substation ES. Once the CICS application has executed and sent a reply, the messages are consumed and reported by this Substation ES IVP EMS sender listener. Errors are also reported.

Data Set: `USERHLQ.JCL`

Member: `SXCRIJSL`

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