Every once in a while, our 100mbps Mikrotik switches will report that they transfered 100+ pbps (Yes, pettabits). Is there a way to discard these values when they come in? It makes looking at the graphs very difficult.
You might be using a DCI with integer data type and doing a delta transform? If that's the case, you could change this DCI to be a counter data type which I believe handles overflows for you.