Angola sustained a significant, multi-day degradation in network connectivity beginning on August 14. The disruption, which lasted for approximately five and a half days, was primarily observed in a key backscatter measurement signal, indicating a substantial reduction in aggregate internet traffic.
Technical Details
The disruption period ran from 14:00 UTC on August 14 to 00:30 UTC on August 20. The Merit Network Telescope (merit-nt) signal, a proxy for aggregate internet connectivity based on backscatter measurements, recorded a severity score of 709,977. Its median value dropped by 50% from its peak during the observation window.
Other network measurement signals showed less pronounced impacts. The gtr-norm signal, which measures deviation from an expected traffic baseline, recorded a 12% drop from its peak. The Border Gateway Protocol (BGP) control plane and active probing (ping-slash24) signals for IPv4 reachability remained largely stable, showing minimal deviation.
Reported Cause
The cause of the prolonged network degradation has not been publicly attributed.
Connectivity was reported restored by the end of the observation period.
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