Fri Jan 27, 2012 12:53 pm
There are graphing programs available outside of MikroTik which can graph at 1 minute intervals, although its resource intensive with a large number of hosts & thus usually avoided.
The graphs are not 100% accurate because they're averages of data over a 5 min polling period, but they give a fairly good idea of how much data is going across the line. The more often you poll, the more accurate the graph will be, and the higher rate it'll show.