Fwhits graphs

Hi,

during search of a solution for bug #12838, I played around a bit with the graphs. Actually they are based on the bytes RRD of collectd, collectd produces a packets RRD.

Wouldn't it more interesting to count the number of hits than the data amount? For example 10 packets with 20 bytes give the same Bps rate as 1 packet with 200 bytes.

I made some little modifications to graphs.pl. So I could easily produce the graphs for 'Bytes per Second' and 'Packets per Second' for nearly same time.

I have attached them for discussion.

Regards, Bernhard