I’m looking for product recommendations:

 

We’ve noticed that about 20% of our traffic here lately has decamped from the free (or, at least, flat-rate) connection to CANARIE (our R&E network) and its various connected content-delivery networks, and onto our commercial provider.

While this is presumptively a legitimate shift, we’d like to better understand these changes when they occur, in a way that our executive can understand at a glance.

We do have sFlow (et al.) going to an Arbor PeakFlow box for analysis, but it’s lacklustre at best at understanding changes like this.

I want:

• Top #n ASNs by traffic volume, per router/interface, stacked chart
• Some way to visualize large jumps in that dataset, e.g. if Cloudflare ditched their CANARIE connection and now that traffic all goes commercial, I don’t know what sort of graphic would be useful, maybe a stacked polar chart so you could see when an AS jumped from one sector to another?  Even stacked bar charts could be useful.