Here's the sort of thing you might do to set up SNMP support on your
system, assuming that you have net-snmp installed in the normal
locations for something like RedHat Linux.

0. Edit the example GNSTEP-MIB.txt to contain your own organisation's
   Private Enterprise Number

1. install GNUSTEP-MIB.txt in /usr/share/snmp/mibs

2. edit '/etc/sysconfig/snmpd.options' to contain:
OPTIONS="$OPTIONS -Dgnustep -Lf /var/log/snmpd"
export OPTIONS
so that any debug for the gnustep module would be logged
in /var/log/snmpd

3. edit '/etc/sysconfig/snmptrapd.options' to contain:
OPTIONS="$OPTIONS -Dgnustep -Lf /var/log/snmptrapd"
export OPTIONS
so that any debug for the gnustep module would be logged
in /var/log/snmptrapd

4. edit /etc/snmp/snmpd.conf to get it to send traps to snmptrapd ...

rwcommunity     public
trap2sink       localhost public

and to accept agentx connections via tcp ...

agentxsocket    tcp:localhost:705
master          agentx

5. restart with '/etc/rc.d/init.d/snmpd restart'

6. build/install/run the Control server

7. test with snmpwalk ...

To look at EVERYTHING:
snmpwalk -v 1 -c public localhost GNUSTEP-MIB::gnustep

To look at the current alarms table:
snmpwalk -v 1 -c public localhost GNUSTEP-MIB::gnustep.alarms.alarmsTable

To look at the current alarms table in a tabular format (rows of columns) which will be far too wide to view in a normal terminal window:
snmptable -v 1 -c public localhost GNUSTEP-MIB::gnustep.alarms.alarmsTable

To look at the managed objects table:
snmpwalk -v 1 -c public localhost GNUSTEP-MIB::gnustep.objects

You should be able to get the heartbeat poll interval with:
snmpget -v 1 -c public localhost GNUSTEP-MIB::pollHeartBeat.0

You should be able to set the heartbeat poll interval to two minutes with 
snmpset -v 1 -c public localhost GNUSTEP-MIB::pollHeartBeat.0 i 2

You should be able to set the resync flag interval with
snmpset -v 1 -c public localhost GNUSTEP-MIB::resyncFlag.0 i 1
and set it back to normal with
snmpset -v 1 -c public localhost GNUSTEP-MIB::resyncFlag.0 i 0