SAP Connector > Part I: Introduction to SAP Connector > Introduction to SAP Connector > Communication interfaces
  

Communication interfaces

SAP uses TCP/IP as the native communication interface to communicate with Data Integration.
SAP also uses the Remote Function Call (RFC) communication protocol to communicate with Data Integration. To execute remote calls from Data Integration, SAP requires connection information, and the service name and gateway on the application server. The service and gateway parameters, and connection information is stored in a configuration file named sapnwrfc.ini on the Secure Agent machine.