Topology information component Thomas Bourgeau Laboratoire LIP6 – CNRS Université Pierre et Marie Curie – Paris 6 1st July - OneLab meeting (Sofia)

22 Objective of the Topology information component Provide information concerning – The underlying network topology (IP/AS-Level) Add two additional measurement subcomponents. – Active measurement subcomponent IP-level route traces Improve the monitoring capability – Allows applications to query the topology information component. TopHat API

3 TopHat: OneLab Topology Information Component

4 TopHat registration In order to use TopHat, a user has to be register

5 TopHat: Server methods API TopHat Methods for active Measurement – TopHat methods are defined on D3B.1 and D3B.2

6 TopHat and XML-RPC Access topology information through TopHat with XML- RPC. – Common library that can be use by several development language as Java, C, perl, python.

7 TopHat web services

8 TopHat: Get Graph of a day

9 TopHat: Search path

10 TopHat: Search path

11 Mapping IP to AS TopHat Server can: Translate any hop results with its correspondent ASs Store ASs information related to IP: (AS, BGP Prefix, Registry, AS Name) Query Team Cymru Whois server (GetIP2AS)

12 TopHat: As-Level results 2

13 Future OneLab partners will have full access to TopHat. TopHat will run as a continuous service for PlanetLab users. New users and contributors are welcome.

14 Conclusion Thank you for your attention Questions …