[Flow-tools] billing from netflow data?

[Ed Ravin]

On Tue, Oct 23, 2007 at 11:20:04PM -0400, Charles Sprickman wrote:
> Does anyone do that?  We currently just have the mrtg 95th percentile 
> hack, and I really can't verify it's accuracy.
> 
> We've got the same data in flows, anyone run across a tool to pull usage 
> data easily for a specific IP and/or interface?

I hacked together something using flow-nfilter and flow-report to filter
out the data I wanted, ran that after every flowfile rotation (after
changing rotation to every 5 minutes), and saved the outputs to get counted
up and summarized at the end of the month.  Ugly, but it seems to work.

But I also copied all of my Cricket samples from the router interface
in question, stuck them in a database for later retrieval, and used that
data for sanity checking.  My summarizer script uses both data sources
to produce its report.

I like the results of flow-report but there's a very steep learning
curve.  We ought to write a tutorial manual for it.  I might do it
if someone could convince me that the flow-tools project has a future
ahead of it.