i'm trying to create a threshold for cpu usage in snmpd.conf.
i included the MIB in the configuration file for the cpu usage:
.1.3.6.1.4.1.2021.11.10.0
but i really don't know what are the flags needed for me to monitor that. it is not like
load 10 11 12 and how to invoke the monitor command that will send the trap message when the cpu percentage exceeds the threshold
To monitor CPU usage and other system resources I use nagios3.
Nagios can read data from SNMP and draw graphs and raise notifications if certain threshold is reached, nagios server should have apache install.
Since nagios needs configuration here is nice page for start Nagios installation
target computer needs to have SNMPd installed
There is DisMan Event MIB which is usually built with snmpd.
Basically you need to addin your snmpd.conf:
trapsink/trap2sink/informsink
monitor Statement
Here is the man page for DisMan and some examples from Stack Overflow
