wdisp/url_map_protocol is a SAP Parameter attribute which is used to control Protocol used for URL mapping retrieval information. This is available within R/3 SAP systems depending on the version and release level.
Below is the standard documentation available and a few details of the attributes values .
Log that SAP Web Dispatcher uses to read URL Mapping information from
the AS ABAP application servers.
You can secure the conenction using HTTPS.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.