wdisp/HTTP/max_pooled_con is a SAP Parameter attribute which is used to control Maximum number of Web Dispatcher HTTP connections to a backend server 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 .
This parameter determines the maximum number of HTTP connections in the
Web Dispatcher's connection pool for each SAP Web Application Server.
You should not normally change the default setting.
See SAP Parameter Documentation for full SAP documentation for this profile parameter.