I'm having a similar problem with Orion NPM. We are running version 9.0 SP2 and the Big-IP is running version 9.4.4 Build 73.1 Hotfix HF1.
However, Orion NPM is not recognizing the manufacturer/vendor as F5 nor is it able to identify what the machine type is and I am not getting any readings on CPU utilization.
I realize that I need to use some custom pollers with the F5 to get the additional information such as pools and virtual servers but do I also have to use a custom poller to get CPU utilization?
And what do I need to do in order for Orion to determine the manufacturer as F5?