When I access http://<localhost>:50000/sld, then clicking on to Technical Landscape, I get an error "Please set the SLD Parameter Object Server first".
I suspect that I haven't activated SLD. So I searched on how to activate it and found this procedure, "Configuring and Activating System Landscape".
The SLD is part of the J2EE Engine. To activate and configure an SLD; you need to perform the following steps:
1. Execute the following URL to open the SLD start page: http://<host>:<port>/sld. <Host> and <Port> are the values for the associated J2EE Engine.
2. Choose Administration -- Server Settings.</i>
The weird thing is that when I access SLD start page, I couldn't find "Administration" in it.