I have various mikrotik devices as cpe for dsl connections in the field and would like to log the accounting traffic somewhere.
As I am not the isp, there is no access to radius accounting information for the pppoe links. This would be to easy.
Graphs are nice but also and more importantly hourly, daily, weekly, monthly etc… traffic.
So NOT explicitly looking at interface graphing. More interface accounting.
You can still use SNMP to grab the interface counters and extrapolate reporting from there (which is what most graphing systems do, using 5 minute intervals and averaging the data / second), or if you are after more accurate reporting then use netflow (ip → traffic flow) this is a lot more advanced in a lot of ways though as you need a flow collector to receive it then reporting engine to display it.