Connection to Galileo 
When SAP Travel Planning is used with the Galileo reservation system, the following elements are involved in communication between the SAP system and the Galileo system:
● SAP system
● SAP Gateway
● Galileo Gateway
● Galileo XML Select™
● Galileo central system
System landscape:
The RFC destination (Remote Function Call) represents the logical connection between the SAP system and the Galileo Gateway. The RFC calls are channeled through the SAP Gateway. The SAP Gateway communicates in turn with the Galileo Gateway.
The tasks of Galileo XML Select are identification and the authorization check. It also controls access to the Galileo central system. Galileo XML Select and the Galileo central system communicate through TCP/IP using proprietary protocols.
For the latest information on the installation procedures, see SAP Service Marketplace at http://service.sap.com/ ® Downloads & Services.
See also:
RFC destination for Travel Planning: See the Implementation Guide (IMG) for Travel Management under Travel Planning ® Master Data ® Control Parameters for Travel Planning ® Set Up RFC Destination for Travel Planning.
For general information on communication between SAP and external programs, see the SAP Library under:
· SAP NetWeaver ® Application Platform ® Connectivity ® SAP Communication: CPI-C- ® Programming ® Programming under Various Constellations ® Communication Between SAP and an Externally Registered Program
· SAP NetWeaver ® Application Platform ® Connectivity ® Components of SAP Communication Technology ® Classic SAP Technologies (ABAP) ® RFC ® RFC Programming in ABAP ® Maintain Remote Destinations