On Oct 14, 2008, at 7:40 AM, Lars Eggert wrote:
FYI, there's at least one more proposal in this space: the Ono stuff from Northwestern (http://www.aqualab.cs.northwestern.edu/projects/Ono.html ). There was a paper at SIGCOMM this year, and their system has the interesting feature that it simply freeloads of Akamai's DNS entries in order to determine who's close to whom. No "ALTO boxes" needed.
Basically, this is freeloading on the akamai DNS infrastructure to create a "topology oracle": which nodes are close in terms of network topology as a common proxy for bandwidth.
It doesn't need "ALTO boxes" only because someone else has colleced that information, and that there is a separation between the query replying infrastructure (through DNS) and the measurement infrastructure.
However, it does bring up a good point: DNS games allow the ability to divorce the measurement infrastructure from the reporting infrastructure, and to create a reporting infrastructure that can always work both with and without ISP cooperation.
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