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Part 1. Getting started with AS/400 communications

The AS/400 is an extremely versatile system for networking technologies, supporting a broad range of
communication protocols. Protocols that are supported include TCP/IP, APPC, APPN, HPR, Remote
workstation, asynchronous, and binary synchronous communications.

AS/400 communications configuration is done by either manually or automatically creating a set of
configuration objects that represent the local and remote systems that are to communicate. The types of
objects required for a communications configuration vary, depending on the type of communications being
configured.

Many factors can affect the performance of the AS/400 in a communications environment. To achieve the
best performance with your particular environment review the topics, Optimizing communications
performance, and Communications applications.

You can configure your AS/400 system to communicate with another AS/400 system, a non-AS/400
system, or a remote controller. For information on how to do this, see the following:
v Communicating with host systems

v Communicating with a remote AS/400 system

v Communicating with remote workstation controllers

Communication problems are inevitable and will probably be an issue as you manage your network. If you
suspect that you are having communication problems, review the topic Troubleshooting communication
problems.

Before beginning to work with AS/400 communications, you may want to review the topics, Chapter 9,
“Networking concepts” on page 87 and Chapter 10, “Common networking standards” on page 91. Here,
you can find information related to some of the technologies common to deploying modern networking
solutions in an AS/400 environment.