Inferring link loss rates from unicast-based end-to-end measurement

摘要

In the Internet, because of huge scale and dis- tributed administration, it is of practical importance to infer network-internal characteristics that cannot be measured di- retly. In this paper, based on a general framework we proposed previously, we present a feasible method of inferring packet loss rates of individual links from end-to-end measurement of uni- cast probe packets. Compared with methods using multicast probes, unicast-based inference methods are more flexible and widely applicable, whereas they have a problem with imperfect correlation in concurrent events on paths.