in the course of troubleshooting a fault I noticed that the 10 sec Drop Packet graph under monitoring/interfaces/outside/drop packet count on the ASDM was giving the same total every 10 seconds (+/- 1 or 2 every now and then). I searched for specifics on what this monitors, and other than 'dropped pkts' I've drawn a blank.
I've checked 3 different customer ASAs (2x5510s and a 5520) and they're all the same - the total is different but the variation is the same.
I can understand the drops occuring but why it is constant is not so clear - can anyone shed some light on the what and why?