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Using CA Service Virtualization › Using the Workstation and Console with CA Service Virtualization › Creating Service Images › Create Service Image by Recording › Transport Protocols › Record CICS (LINK DTP MRO) › CICS Overview

CICS Overview

To allow recording IBM CICS service images, DevTest has a mainframe bridge that is a part of the registry. That mainframe bridge supplies a single point of contact for all of the DevTest Workstations to the mainframe. The mainframe has an LPAR agent that runs on a z/OS LPAR. The LPAR agent provides a single point of contact to all of the CICS agents.

Each CICS region has a DevTest CICS agent that provides the virtualization capability. The CICS agents communicate with the LPAR agent over sockets, and the LPAR agent communicates with the mainframe bridge over sockets. The mainframe bridge provides an ActiveMQ interface through the registry to all of the DevTest clients.

Concept diagram of IBM CICS virtualization with VSE.

The mainframe bridge can run in the following modes:

Client mode

The mainframe bridge initiates the connection to the LPAR agent.

Server mode

The mainframe bridge waits for the LPAR agent to initiate the connection.

The lisa.properties file contains properties to enable the mainframe bridge. For more information, see "Mainframe Properties".