I use Cacti to gather data from large chassis-based switches, many of which have over 400 ports. It is necessary to see data from each port, but viewing the device naturally takes a long time (as it tries to load hundreds of graphs)!!
It would be very useful to be able to group interfaces, so for example I would see:
An alternative to this feature would be to the ability to limit the number of graphs per page. It would take a little guesswork to figure out the exact page the port in question is on, but would definitely be nicer than waiting ~1 minute for the page to load.
Thanks (and keep up the great work on this product!)
Adam