Facebook’s historic outage, explained
Kentik
OCTOBER 4, 2021
When we first heard about problems with Facebook, we checked Kentik’s OTT Service Tracker, which analyzes traffic by over-the-top (OTT) service. The withdrawal of the latter prefix is shown below in Kentik’s BGP Monitor (part of Kentik Synthetics ) beginning with a spike of activity at 15:39 UTC before returning at 21:00 UTC.
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