Angola experienced a significant, multi-day degradation in internet connectivity beginning on August 14. The disruption lasted for over 11 days, with the last observation at 00:30 UTC on August 26 showing the issue was still ongoing. The primary impact was observed in a key backscatter measurement signal, which serves as a proxy for aggregate network connectivity.
Technical Details
The merit-nt backscatter signal recorded a severity score of 1,493,380 over the event period. This signal measures unsolicited network traffic, providing a broad indicator of overall internet reachability. Its median value dropped by 66% from its peak during the observation window. Other network health indicators showed less severe impacts. The gtr-norm signal, which measures deviation from an expected traffic baseline, saw an 11% drop from its peak. Border Gateway Protocol (BGP) control plane visibility and active probing for IPv4 reachability remained largely stable, showing minimal percentage drops.
The cause has not been publicly attributed.
The disruption remained ongoing at last observation.
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