ALTO BOF -- IETF 72, Dublin
Tuesday, July 29, 9:00-11:30


A significant part of the Internet traffic is today generated by
peer-to-peer applications used for file sharing, realtime
communications and live media streaming.  Contrary to client/server
architectures, P2P applications access resources (e.g. files or media
relays) distributed across the Internet and exchange large amounts of
data in connections that they establish directly with nodes hosting
such resources.  In this context, addressing the Application-Layer
Traffic Optimization (ALTO) problem means, on the one hand, providing
topology information regarding the underlying network to P2P
applications and, on the other hand, enhancing P2P applications in
order to use such information to select the best endpoints among those
that are available for the connections they are going to establish.

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Mailing list: (archives)

BOF chairs: Enrico Marocco <>
            Vijay K. Gurbani <>


 9:00 Administrivia                                              (Chairs, 5)

 9:05 Problem statement                                         (Chairs, 25)

 9:30 Survey of existing work                              (Volker Hilt, 15)

 9:45 Distance-related network costs               (Henning Schulzrinne, 15)

10:00 Requirements                                    (Sebastian Kiesel, 20)

10:20 Caching and peer selection                        (Reinaldo Penno, 10)

10:30 Similar problems in multi-homed networks   (Dimitri Papadimitriou, 15)

10:45 Charter discussion                                        (Chairs, 40)

11:25 Wrap-up                                                (Chairs/ADs, 5)

11:30 End