An Opportunity for ISP and Application Collaboration
Seminar Room 1, Newton Institute
Our analysis of residential broadband Internet traffic reveals a number of surprises in terms of the
mental models we developed from the measurement literature. For example, we find that HTTP—
not peer-to-peer—traffic dominates by a significant margin; that more often than not the home
user’s immediate ISP connectivity contributes more to the round-trip times the user experiences
than the WAN portion of the path; and that the DSL lines are frequently not the bottleneck in
Moreover, we note that applications often put their own traffic optimization strategies in place.
Among the popular examples are Content Distribution Networks, large content providers with
multiple data centers around the world, as well as P2P networks. However, these applications rarely
respect or even consider the underlying network. To overcome this, we suggest that applications
and ISPs should collaborate. We propose and evaluate the feasibility of a solution using as ISP
offered information service.