The FTP server has its own subagent (FTP subagent), which is operated via a management application.
The “SNMP Management (NET-SNMP) for BS2000” manual contains information on the following topics:
Software requirements
Installation and deinstallation
Starting up and shutting down the FTP subagent
Interaction between the FTP subagent and FTP server
The FTP server accesses the FTP subagent via the fixed port number 3237. Immediately after starting up, the FTP server reports to the FTP subagent, provided this subagent is also started, and provides it with the following information:
Port number, under which the FTP subagent can access the FTP server
Server port number for the control connection to the FTP client
Assuming a server entity with this server port number does not already exist, the FTP server creates the relevant server entry.
Each FTP server writes its two port numbers to the SYSDAT.TCP-IP-AP.nnn.SNMP file at startup. If the FTP subagent is only started subsequently, it can check SYSDAT.TCP-IP-AP.nnn.SNMP for the currently active FTP server and create the relevant data structures.
If the FTP server is shut down, it deletes its entry from the SYSDAT.TCP-IP-AP.nnn.SNMP file.