rdisp/msserv_internal SAP Parameter attribute - Internal port for server communication

rdisp/msserv_internal is a SAP Parameter attribute which is used to control Internal port for server communication 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 .

rdisp/msserv_internal profile paramerter attributes

Parameter Name: rdisp/msserv_internal
Description: Internal port for server communication
Default Value: 3916
Parameter Type ( See IF_PARAMETER_TYPES): Integer range(INT_RANGE)
Restriction Values: 0 65535
Parameter Unit:
Parameter Group: Dispatcher
CSN Component: BC-CST-DP
System-Wide parameter: Yes
Dynamic Parameter: No
Vector Parameter: No
Has Sub-Parameters: No
Check Function Exists: No

Parameter documentation

If this parameter has a value n not equal to 0, the message server opens another port (port number ),in addition to its port sapms<(><<)>SID>. This new port is used only for internal communication with the application servers. Application servers must also log on through this port, otherwise they are rejected. The normal sapms<(><<)>SID> port can still be used for queries. Load distribution functions and the retrieval of application server lists and logon groups are not affected. As a result, the communication modes of the message server can be decoupled. For internal communication a different data channel is used from the one used for external communication, where external clients only have read-only access. Value 0 means that no internal port is used. This is also the default setting.
Caution This parameter must be defined centrally and must be the same on all application servers.

See SAP Parameter Documentation for full SAP documentation for this profile parameter.