A web interface to check the consistency of RPSL policies

Dear All,

In the framework of a research project on interdomain traffic
engineering, Vincent Magnin, has developped a tool and a web interface
that could be useful for network operators. The tool relies on the RPSL
databases from the main 19 IRR  and builds a map of the global Internet
based on this information. Furthermore, by using a few heuristics the
tool is able to infer the type of relationship (customer->provider,
provider->customer, peer-to-peer, ...) between two autonomous systems.
This heuristic works well when both AS register accurately their routing
policies. Unfortunately, not all ASes correctly maintain their RPSL
policy. In those cases, the heuristic will either perform an educated
guess or indicate a potential problem found in the RPSL specification.

The web interface of the tool allows to easily browse through the 19
RPSL databases and we believe that it could be useful for ISPs willing
to check the consistency of their RPSL policy compared to the policy of
their neighbors.

You can access the web interface of the tool at the URL below :

	http://rpsl.info.ucl.ac.be

Your feedback, to rpsl at info.ucl.ac.be is welcome as we intend to later
release the tool in open source if it appears to be useful for
operators. 

Best regards,


Vincent Magnin, Steve Uhlig and Olivier Bonaventure

-- 
CSE Dept. UCL, Belgium - http://www.info.ucl.ac.be/people/OBO/