NOTE

Configuring APPC Communication

Overview

Overview

APPC applications, 5250 emulation programs, and CPI-C applications all require that you configure APPC first. An APPC application uses the node's LU type 6.2 resources to communicate with another APPC or CPI-C application on a host or peer computer, using a specified mode.

If the applications use CPI-C, you may need to do additional CPI-C configuration after configuring APPC. A CPI-C application uses the node's LU type 6.2 and mode resources to communicate with another APPC or CPI-C application on a host or peer computer. You define the same resources for a CPI-C application as for an APPC application. In addition, if the TP on the SNAplus2 computer is the invoking TP (the TP that starts the conversation), you may need to define one or more side information entries for it, as described in “Defining CPI-C Side Information”. Each of these entries provides information on a partner TP, the LU and mode resources used to access it, and any security information required.

The configuration steps for APPC depend on whether the LU 6.2 traffic is dependent or independent. Unless the remote node is a host, you must use independent traffic. If the remote node is a host, you can use either dependent or independent traffic.

Before you can configure APPC communication, you must perform the following configuration:

•Configure the node as described in “Configuring the Node”.

•Configure connectivity as described in Chapter 5, “Defining Connectivity Components.”

In an APPN network, a single link station to an adjacent network node can be used to communicate with any remote node in the network, so you do not need to configure a separate link station to each remote node.

In many cases, APPC applications can use the control point LU on both the local and remote nodes, and a standard mode. In this case, your configuration is ready for APPC without any further configuration.

The following steps can be used to configure APPC communication on the local node. Depending on the types of the local and remote nodes, and on your application, you may not need to perform these steps.

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Chapter 7