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Re: 2006.06.05 NANOG-NOTES BGP tools BOF notes
Matthew Petach wrote:
We have such a whatifatron. We used it for instance to investigate the impact of peering/depeering on routing and on traffic in various ISP networks including a large european transit network. Our tool is called C-BGP and some of the what-if scenarios we performed on the GEANT network were described recently in an IEEE Network paper entitled "Modeling the routing of an Autonomous System with C-BGP" (November 2005).Q: Randy Bush. Common problem we all face. I'm at 42 peering points; my neighbors are X. I have route views dumps, I have my BGP dumps. I have my netflow data. Want a whatifatron that shows what happens to my traffic if depeer someone, or add someone, or peer with SingTel in singapore, or stop peering with Joe in SF. That's a question many operators ask every day.
Our tool is able to eat BGP dumps (in MRT format), Cisco/Juniper configs and NetFlow data. It's open-source and released under LGPL. It is still a command-line tool but we are working towards a more user-friendly interface.
Some useful links:
http://www.info.ucl.ac.be/~standel/bgp-converter/ -> Cisco/Juniper parser
http://cbgp.info.ucl.ac.be/gui-totem.html -> upcoming GUI
If any of you is interested in testing it on its data, please feel free to contact me :-)A: Matt notes that if they can solve that question/write something that does all that, they'll have Arbor and others beating on their door. ^_^
CSE Dept. UCL, Belgium - http://www.info.ucl.ac.be/~bqu
Phone: ++32 10 47 24 04 GSM: ++32 498 28 12 21