Common Communications Interface › Configuration › Communications Protocols

Communications Protocols

Depending on your workload, network resources, and the combination of CA products you have installed, you will need to configure one or more of the following protocols:

Cross Memory Services

Provides messaging between applications residing in different address spaces on a single z/OS system. The protocol is enabled whenever CAICCI is running. It is the default protocol used when communications partners reside on the same computer.

Parallel Sysplex Protocols

Provides high‑speed communications between z/OS applications running on different computers in a parallel sysplex. For a parallel sysplex configuration, you should deploy the cross-system coupling facility (XCF) or the cross-system extended services (XES) between the z/OS images.

The XCF and XES protocols provide performance, fault tolerance, and scalability to parallel sysplex users.

TCP/IP

Provides CAICCI connections among the following:

• Mainframes running TCP/IP
• PC-to-mainframe client‑server applications
• UNIX, Linux, Windows, z/OS, and other CA platforms

SSL

(CAICCI r12 and above) Provides data encryption and authentication of the connecting systems run over TCP/IP.

SNA (VTAM)

Provides mainframe communications for z/OS, VM, and VSE systems using SNA LU0 and interconnects z/OS, VM, and VSE systems using VTAM‑supported networking hardware.