The Mainframe Access Products set uses a number of IBM mainframe software products to allow mainframes to act as clients and servers. The most important of these products are listed in Table G-2.
Product |
Description |
|---|---|
APPC/LU 6.2 (Advanced Program-to-Program Communication facility, which is a Logical Unit Type 6.2.) |
IBM’s program-to-program communication protocol. Open ServerConnect, Open ClientConnect, DB2 Access Module, and MainframeConnect for DB2 UDB can all use APPC to communicate with DirectConnect. |
C/370 |
An API that is available in Open ClientConnect 3.2. |
CICS (Customer Information Control System) |
A transaction monitor on the mainframe. Open ServerConnect, Open ClientConnect, and MainframeConnect for DB2 UDB are all available for CICS. |
DB2 (Database 2) |
A relational database on the mainframe that uses SQL. Mainframe Access Products clients can send requests to DB2. |
IMS TM (Information Management System Transaction Manager) |
A transaction monitor and data communication system on the mainframe. Open ServerConnect, Open ClientConnect, and the OmniSQL Access Module™ for™DB2 are all available for IMS TM. |
OS PL/I Version II |
An application programming language. Open Client Client-Library and Open Server Gateway-Library are both available for PL/I. |
TCP/IP (Transmission Control Protocol/Internet Protocol) |
A communication protocol in general use. Open ServerConnect, Open ClientConnect, the OmniSQL Access Module™ for DB2, and MainframeConnect for DB2 UDB, can all use TCP/IP to communicate through DirectConnect. |
VS COBOL II |
An application programming language. Open Client Client-Library and Open Server Gateway-Library are both available for COBOL. |
VTAM (Virtual Telecommunications Access Method) |
A mainframe access method used with SNA. Mainframe-based Mainframe Access Products products run in a VTAM environment. |
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