Custom Monitoring using SNMP Script for a specific service. - The script is written to avoid false alerts generated due to custom monitoring. 

This will trigger multiple SNMP monitoring attempts (3 times) before calling the failure.

a=0

while [ $a -lt 3 ]

do

   snmpwalk -v2c -c 'XXXXXsecretkeyXXXXXXX' | grep "customvalue" >> /dev/null

   if [ $? = 0 ]; then

        echo "80"

        exit

   else

        sleep 3

        a=`expr $a + 1`

   fi

        echo "0"

done

-