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In this paper, we present Chocolatine, a solution
to detect remote connectivity loss using Internet Background
Radiation (IBR) through a simple and efficient method. IBR
is unidirectional unsolicited Internet traffic, which is easily
observed by monitoring unused address space. IBR features two
remarkable properties: it is originated worldwide, across diverse
ASs, and it is incessant. We show that the number of IP addresses
observed from an AS or a geographical area follows a periodic
pattern
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