I'd find it useful to be able to modify RRD's setup so it collects data at 15 or 30 second intervals and stores it unaveraged for longer. The benefit would be when trying to understand the network's activity on short timescales or in light of brief but strange network events. I've got hardware capacity for the increase in data or CPU and this page says it's not a problem for RRD itself.
Is it possible, and what has to be done?
I'd also like to graph the peak values rather than average (useful to know what capacity or limits we hit). How's that done?