So I've tried a few OIDs, but they aren't very useful.
1.3.6.1.4.1.41916 for displaying BFD tunnels, it polls the date, but only offers 5 minute polling intervals so the average is so linear because it can't do seconds.
1.3.6.1.4.1.41916.100.2.4 for displaying bfd tunnel state changes but I'm not sure how to make use of the information that it displays at the moment.
Please share with me some custom pollers that you have found useful for viptela.