Hi Freddy, As Paul has mentioned, you could check the David's project - SIR, look at his presentation: https://www.youtube.com/watch?v=o1njanXhQqM We've also developed a platform for the BGP monitoring and routing optimization which could solve your problem. It would inject to the border routers only TOP X prefixes with which you exchange most of the traffic. The added value would be that route orders point to best performing transit (low latency, 0 packet loss) per distant prefix. If you are interested to know more about our software please contact me off-list. -- Regards, Pawel Rybczyk Regional Manager BORDER 6 sp. z o.o. pawel.rybczyk@border6.com office: +48 22 242 89 51 (ext.103) mobile: +48 664 300 375

David Barroso's (Spotify) SDN Internet Router [0] comes to mind.

0 - https://github.com/dbarrosop/sir

On 4/2/2015 午後 07:47, Baldur Norddahl wrote:

...

Filtering countries is a bad idea, but it is probably possible to create filters so 99% of your actual traffic is handled by a relatively small subset of global routes and the remaining 1% routed via a default route or via a Linux box.

Anyone know of tools and methods to do this? How effective is it ( how many routes is necessary to capture 99% of the traffic)?

Regards

Baldur