Reachability is thought of as the most basic service provided by today's Internet.
Unfortunately, this does not imply that the community has a deep understanding of it.
Researchers and operators rely on two views of reachability: control/routing-and data-plane
measurements, but both types of measurements suffer from biases and limitations. In this
paper, we illustrate some of these biases, and show how to design controlled experiments
which allow us to" see" through the limitations of previous measurement techniques. For …

Reachability is thought of as the most basic service provided by today's Internet.
Unfortunately, this does not imply that the community has a deep understanding of it.
Researchers and operators rely on two views of reachability to assess it: control/routing-and
data-plane measurements. Both control-and data-plane measurements suffer from different
biases and have their own limited visibility. In this paper, we illustrate some of these biases,
and show how to design controlled experiments which allow us to" see" through the …