I am using check_snmp_int ( manubulon.com/nagios/snmp_int.html) plugin to monitor traffic. Does any one have any idea about the output of the plugin ? In my environment its output is eth0:UP (7.8/1.5):1 UP: OK . I understand the interface is up, however (7.8/1.5) doesn't make much sense to me. Anyone knows what these numbers could be ? Though, Performance data is self explanatory.