SNMP management systems send SNMP messages to agents, which respond to those messages. In most cases, the management system requests information from a management information base, or MIB, managed by the agent. The MIB is a set of objects that function as a database of information about the managed host. The only message an SNMP agent generates on its own is a trap, which is an alarm-triggered event on the agent host. A system reboot on the agent host is an example of a trap.
SNMP uses communities to give a limited amount of security for SNMP and a means of grouping SNMP management systems with agents. Agents respond only to management systems in the list of communities to which they belong. The community name serves as a password for access by the management system to the agent. Agents can belong to multiple communities.
To install SNMP (Simple Network Management Protocol) in windows server 2008 core use the following command
start /w ocsetup SNMP-SC
use one of my other full gui Server 2008 installs to configure SMNP and then export the registry key (HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\SNMP) and import it into the Core installation.Finally restart your snmp service
Configure it from a remote computer. Open up Computer Management on your machine and then connect to the server. You should then be able to pull up the services to that server from your machine.
You can try to configure from command line check this tutorial