RFC3164 is “the old format” of Syslog.
Properties
Message: Syslog message
Address: Destination address. e.g. 127.0.0.1
Port: Destination port
Facility: Syslog facility
Severity: Syslog severity
Hostname: Hostname to be used for the Syslog message
Process-name: A process name to be used for the Syslog message
Output
output-location: Location to store the output data