internet_outage_adaptive_a21j-20150702 (07/02/2015 to 10/01/2015)

University Of Southern California-Information Sciences Institute
To collect this data, all allocated and responsive Internet IP address blocks were pinged by sending ICMP ECHO_REQUEST (PING) packet. The block status was recorded in this data set. Probe was repeated every 11 minutes, and more quickly when uncertain about block status. In all, approximately 3.5M /24 subnets were periodically probed.
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