Date and time: 11.30am - 12.30pm, Friday 14th August, 2009
Venue: 10.08.03 (Building 10, Level 8, Room 3)
Abstract:
Interdomain Traffic Engineering (TE) across domains employing Path Computation Elements should allow a source domain to select a good AS path, i.e. one likely to allow the actual setup of an interdomain tunnel. This is impossible if the AS path is computed online during path setup (which happens, e.g., in per-domain tunnel setup). On the other hand, the routes that a source domain learns from BGP are normally too few, and oblivious to TE constraints. In this talk, we present the Inter-AS Path Computation Protocol (IA-PCP), whose purpose is to compute a larger number of “good” AS paths, allowing a source to choose the suitable one among a larger set, so as to route PCE-assisted interdomain path computation. We show that, within a reasonable computation time, sending relatively few messages and preserving domain confidentiality, IA-PCP provides a source domain with a set of AS paths which closely approximates the one found exploiting full knowledge of the network AS-topology.
About the speaker:
Giovanni Stea received the Laurea degree (magna cum laude) and the PhD degree in Computer Systems Engineering from the University of Pisa, Italy, in 1999 and 2003 respectively. Starting from January 2004, he has been an Assistant Professor (Ricercatore) at the Department of Information Engineering, within the Computer Networking Group. He is also a member of the ANTARES research consortium. He is a member of IEEE, ACM and ICST.
Seminar Organisation
Seminars are free and open to the general public. No booking is necessary. If you are interested in giving a presentation in this seminar series, or to make suggestions for speakers, please contact Xiaodong Li, the seminar co-ordinator.