Testbed to test the performance of an SDN/BGP setup?

I have an idea about using an SDN controller to set up BGP policies, and I want to test the overhead it would have and the impact on convergence.

Ideally I want to take a stream of BGP updates from [RouteViews](http://routeviews.org/) and provide it as input to a vanilla BGP router to measure its performance. Then I want to create a custom implementation where the BGP router will take policy rules from an SDN controller, and test its performance with the same stream of BGP data.

Unfortunately I don't have dedicated hardware. Is there any open-source software platform available for such experimentation?