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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