Job Management Partner 1/Automatic Job Management System 3 for Enterprise Applications Description, User's Guide and Reference

Appendix B.1 Port numbers to be used for communication with an R/3 system or a SAP BW system

JP1/AJS3 for EAP uses Remote Function Call (RFC), which is a communication program provided by SAP, to communicate with an R/3 system or a SAP BW system (RFC connection). In an RFC connection, the connecting side (JP1/AJS3 for EAP) does not use a specific port number or a well-known port number and, instead, uses any available port assigned by the OS. The connected side (R3/system or SAP BW system), however, uses different port numbers depending on the method of RFC connection.

The following table describes the port numbers that can be used by the R/3 system or the SAP BW system depending on the method of RFC connection.

Table B-1 Port numbers used for RFC connection

Type of device for connection	Service name	Port number	Direction of traffic
Application server	sapgwnn#1, #2	33nn/tcp#1	JP1/AJS3 for EAP R/3 system or SAP BW system
Message server (load balancing)	sapmssid#3	Any/tcp (Default: 3600/tcp)	JP1/AJS3 for EAP R/3 system or SAP BW system
SAP router	Any (Default: sapdp99)	Any/tcp (Default: 3299/tcp)	JP1/AJS3 for EAP R/3 system or SAP BW system

Legend:

: Direction of traffic when a connection is established

#1

nn indicates the system number of the connection destination R/3 system or SAP BW system.

#2

If you use secure network communication (SNC), use sapgwnns (port number range: 4800 to 4899/tcp (48nn/tcp).

#3

sid indicates the system ID of the connection destination R/3 system or SAP BW system.

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