Measuring Routing Tables in the Internet

By Élie Rotenberg, Christophe Crespelle and Matthieu Latapy

NetSciCom 2014

Abstract

The most basic function of an Internet router is to decide, for a given packet, which of its interfaces it will use to forward it to its next hop. To do so, routers maintain a routing table, in which they look up for a prefix of the destination address. The routing table associates an interface of the router to this prefix, and this interface is used to forward the packet. We explore here a new measurement method based upon distributed UDP probing to estimate this routing table for Internet routers.

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