Nagios Monitoring for BiIP (F5) TMM-Utilization

I think I answered on your stack question as well, did you see my comment? I loaded this script up and configured SNMP on my BIG-IP to allow for polling with a community string and I ran it with no issues. That you are getting divide by zero issues indicates to me that you are not getting all the oid data returned from BIG-IP. Step back out of the script and try to do an snmpget to those oids from the command line of the system your script is running to make sure you are getting valid data back.