added a F5 big-ip with my snmp string and everything works fine. I even tested via the MIB browser and successfully retrieved snmp info.
when i go to the device summary i see "Hardware Status Undefined" poked around the forum and could not find anything that explains specifically what this means and how to test/resolve it.
fyi. the node details state "Node is Up." with a green dot and the interfaces are correctly displayed,. so I'm pretty sure that snmp is working .
thanks in advance