Dear list,
We are planning to graph traffic to top asn's. Currently we are exporting
traffic from a switch mirrored port. The port is connected to the Linux
system hosting nfsen and the flows are exported via nprobe.
I figured the obvious choice would be src as and DST as, but graphs with
those parameters are turning up empty.
I searched around and found a three part script on nfsen list detailing
procedure to graph the top thousand asn's. The link is here.
http://comments.gmane.org/gmane.network.nfsen.general/1242
I couldn't figure out what the top directory means in the first part.
Also, I guess the question boils down to if the core router is not doing
bgp, how do I graph specific asn's? Look up each IP address block, add
them to an ASN and then graph traffic to and from that ASN? Are there any
implementations of it?
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