This object specifies the SFTP/FTP server port that is used for file transfer
only if the value of hwFlhOperProtocol is sftp/ftp.
The default SFTP server port is 22 if no port is specified.
The default FTP server port is 21 if no port is specified.
If the value of hwFlhOperProtocol is not sftp/ftp, this object is ignored by the
implementation.