[Nav-users] How to monitor traffic activity peaks ?

Hello, I would like to make a summary of periodic traffic activity (per month / per year). In the device port details, I can get only average traffic values on periodic graphs. For some reasons, I would like to record the number of maximum traffic peaks and what is the maximum peak value we got in a specicic period range. How can I do that ? (Treshold rules ?) Regards, Ludovic FOUR Faculté de Pharmacie Strasbourg - Support Informatique France