Beschreibung:
<jats:p>
We evaluate
<jats:bold>pathchar</jats:bold>
, a tool that infers the characteristics of links along an Internet path (latency, bandwidth, queue delays). Looking at two example paths, we identify circumstances where
<jats:bold>pathchar</jats:bold>
is likely to succeed, and develop techniques to improve the accuracy of
<jats:bold>pathchar</jats:bold>
's estimates and reduce the time it takes to generate them. The most successful of these techniques is a form of adaptive data collection that reduces the number of measurements
<jats:bold>pathchar</jats:bold>
needs by more than 90% for some links.
</jats:p>