See: http://support.apple.com/kb/TA20884?viewlocale=en_US
To use SNMP for monitoring or data collection, an SNMP agent (snmpd) must be running on the monitored Mac OS X Server host (computer).
Mac OS X Server 10.1.5 or later includes a version of SNMP (UCD-SNMP v. 4.2.3 or later).
If you do not have the file /usr/sbin/snmpd, then SNMP is not installed.
You may download current SNMP source from the NET-SNMP Project Home Page (http://www.net-snmp.org/).
Wes
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