Alert on traffic usage

[Rno]

Anyone have a thold working for the traffic on a interface ?

I used that forumla in RPN:
CURRENT_DATA_SOURCE100,*,|query_ifSpeed|,/

But it dosen't work at all.

So I try to see what CURRENT_DATA_SOURCE give me and on a 40G interface, it's something like Terra, Petya bit, not even close to the actual value.
I'd like to have warning and alert on 50 and 75% usage of the interface.

Anyone any clue ?