© Copyright IBM Corp. 2006. All rights reserved. 1
Chapter 1. Introduction
The z/OS Communications Server is the IBM implementation of the standard TCP/IP protocol
suite on the z/OS platform. TCP/IP is a component product of the z/OS Communications
Server that provides a multitude of technologies that collectively provide an Open Systems
environment for the development, establishment, and maintenance of applications and
systems.
The z/OS Communications Server product includes ACF/VTAM, in addition to TCP/IP.
This introduction to CS for z/OS TCP/IP presents a basic overview of the protocol suite as it is
implemented in the z/OS environment. A more complete and comprehensive explanation of
z/OS Communications Server IP may be obtained from the publications listed in “For
additional information” on page 3.
This chapter discusses the following
.
1
Section Topic
1.1, “Overview” on page 2 Discusses the basic concepts of CS for z/OS IP
1.2, “Why CS for z/OS IP is important” on
page 3
Discusses key characteristics of CS for z/OS IP and why
it may be important in your environment
1.3, “How CS for z/OS IP is
implemented” on page 4
Presents a functional overview of how CS for z/OS IP is
implemented
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