[c-nsp] Total bandwidth usage

[MrPaul]

On 3/6/06, Shishir Belbase <sbelbase at ibasis.net> wrote:
> We use Cacti (www.cacti.net) to collect the bw utilization from our various
> edge routers.  You can use the GUI and/or feed the raw data into a
> perl/Excel module that sends out weekly/monthly reports via email.
>
> Shishir Belbase

Doesn't Cacti just store the data in rrd files (the same as MRTG). 
Short term calculations could be made just fine but if you are wanting
any historical data then you will need to routinely pull the counter
data from the rrd file and insert into a database for long term
storage.