Define cross-system communication

Use the following procedure to set up CAS-to-CAS communication and BBI-SS PAS to BBI-SS PAS communication.

With cross-system communication, a single terminal session, using one or more MainView products, can monitor and manage multiple local or remote targets (the operating system itself in a sysplex or non-sysplex environment, and subsystems like CICS, IMS, and Db2).

A terminal session connects to:

• A CAS (if a CAS is available)
  
  A CAS communicates with other CASs on other local and remote systems and allows direct communication between an individual terminal session and a PAS. Usually, one CAS runs per system image, but there is no limit to the number of remote CASs with which a single CAS can communicate.
  
  
• A BBI-SS PAS
  
  BBI-SS PASs on local and remote systems are linked together to provide cross-system communication for an individual terminal session through a local BBI-SS PAS to any other BBI-SS PAS. Depending on the products that are installed, the BBI-SS PAS might also connect to a CAS on that system image.

The Defining cross-system communication figure provides an overview of cross-system communication.

When CASs reside in the same sysplex, CAS-to-CAS communication is established automatically through the Cross-System Coupling Facility (XCF), as shown in the Cross-system communication in a sysplex environment figure.

Defining cross-system communication

Cross-system communication in a sysplex environment

This section contains the following topics: