The comunication between SLD and SAP systems.
Here is a statement from SAP official document:
By copying the files slddest.cfg and slddest.cfg.key, you have configured TREX for integration in the System Landscape Directory (SLD).
TREX checks every five minutes whether anything has changed in the TREX system landscape and reports any changes automatically to the SLD server. If nothing has changed, TREX reports every twelve hours to the SLD server. This allows you to see that this landscape is still active.
I wonder whether all other SAP systems communicate with SLD in the same fashion as above? If NOT , what is different?
Thanks for clarification.
This is how it exchanges data with ABAP and JAVA based systems -
"JCo RFC Provider for accessing SLD data from ABAP-based systems. SLD has a built-in API for Java-based systems that requires no manual configuration for JAVA based systems"