Defining the Communication Parameters (SAP Library

Defining the Communication Parameters

For the two logical systems to be able to communicate with one another, they must know how to connect to each other. The RFC destination provides this information.

In each of the two clients, you must assign the RFC destination for the other logical system. In Customizing for ALE choose Sending and Receiving Systems ® Configure Systems in Network ® Define RFC Destination.

Execute the function.

Choose Create.

Enter the RFC destination:

Use the name of the logical system that is to be the destination (use UPPERCASE letters).

For client 100 enter the RFC destination LOGSYS0200 .

For client 200 enter the RFC destination LOGSYS0200 .

Select 3 as the Connection type,.
Enter a description of the RFC destination.

For example, ‘ RFC destination for the logical system LOGSYS0200 ’.

As logon parameters, enter the logon language (for example, EN ), the logon client (for example, 200 for LOGSYS0200) and the logon user (user ID with target system password).

Select Continue.

Enter the target system and the system number:

The target system indicates which receiving system application server is to handle the communication. The specifications could be the UNIX host name, the host name in DNS format, the IP address or the SAP router name.

The system number indicates the service used (TCP service, SAP system number).

In SAP logon you can determine the target system and the system number by selecting the button Server:

Select the relevant system and then select Generate list. The system displays a list of all available application servers. To display the system number (instance), select an application server and choose Add. A window appears displaying the system number.

In Transaction SM51 you can display a list of the SAP servers in the target system.

Save your settings.

After saving the RFC destination, you can use Test connection to test the connection, and try to logon via Remote Logon. If you succeed, the system displays a new window for the other system. To check that you are in the correct client choose System ® Status.

Go to next step: Modeling the Distribution