How to generate SNMP TRAP using SNMPSET

i am using in shell script

my objective is if my condition is true than trap will be generate...

i am trying with
snmpset -r 0 -t 1 -v 1 -c public 127.0.0.1 MYTEST-MIB::highCpuUsage.0 i `date +%s`

but its not working its give

Error in packet.
Reason: (noSuchName) There is no such variable name in this MIB.
Failed object: MYTEST-MIB::highCpuUsage.0

PLEASE PROVIDE THE SOLUTION