CICS Clients

There is a CICS® Client for each of the following operating systems:

Each Client can attach to any or all of the following CICS servers:

Supported functions and protocols

Table 5 shows the functions and communication protocols that are supported on each CICS Client-CICS server link.

Table 5. IBM® CICS Client function and protocol support
CICS Servers ECI EPI Terminal Emulator Auto install LU 6.2 NetBIOS TCP/IP
CICS Transaction Server for Windows Y Y Y Y Y Y Y
CICS on Open Systems Y Y Y Y Y - Y
CICS/400 Y Y Y Y Y - -
CICS TS for z/OS Version 2.2 and above Y Y Y Y Y - Y1 2
CICS TS for z/OS Version 2.1 Y Y Y Y Y - Y2
CICS TS for OS/390
Y Y Y Y Y - Y2
CICS TS for VSE/ESA Y Y Y Y Y - -
CICS/VSE V2.3 Y - - Y3 Y - -
Notes:
Y
Function or protocol is supported
-
Function or protocol not supported
ECI
External Call Interface
EPI
External Presentation Interface
Autoinstall
User does not need to predefine the client connection to the server
  1. Native TCP/IP is supported. Using ECI over TCP/IP, all clients are supported, but only the ECI (not the EPI nor the ESI) can be used.
  2. TCP/IP is supported through the use of IBM TCP62 and the AnyNet® feature of VTAM®. Using this method, only the Windows clients are supported, but both the ECI and EPI can be used.
  3. Only single-session LU6.2 connections can be autoinstalled.

Related concepts
Functions that the CICS Clients provide
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