SAP Protocol

The SAP Protocol is the protocol used by SAP programs that communicate using the NI interface. This is an enhanced version of the TCP/IP protocol, which has been extended by one field and some options for error information.

The initial letter S can be used in the route permission table to permit the SAP protocol only. The line is interpreted in the usual way, but only SAP programs (SAP GUI, SAP application server) are allowed to communicate with each other.

The NI network interface provides the SAP protocol as the default for communication, although it can also use the TCP/IP protocol with external programs (for example telnet oder lpd) that do not "speak" SAP protocol.