[AusNOG] Netflow

David Hughes David at Hughes.com.au
Fri Jul 15 09:14:57 EST 2011

Hey Lincoln,

On 15/07/2011, at 8:53 AM, Lincoln Dale wrote:

> certainly there are 3rd party netflow tools that attempt to derive the 'path' and some tools that help model questions like "if i peer with AS X how will that influence my traffic", but netflow itself does not provide that analysis and any tools that do so will be based on a bunch of assumptions that are typically never 100% correct.

Sure, 100% correct isn't going to be possible, but by coupling netflow data and your routing table the results _should_ be very useful.  Naturally, that doesn't include any local routing policies of the transit AS's between src and dst but it should be a fair approximation.


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