Tanzania experienced a Border Gateway Protocol (BGP) disruption on Tuesday, July 8, 2026. The event, which affected the network control plane, occurred in two distinct phases between 08:15 and 09:55 UTC. The disruption registered a severity score of 69.
Technical Details
The BGP signal, which measures the visibility of network routing prefixes in the global control plane, recorded two periods of degradation. The first lasted from 08:15 to 08:35 UTC with a severity score of 31, followed by a second from 09:30 to 09:55 UTC with a score of 38. The total duration of the observed disruption was approximately 1.7 hours.
Other network metrics showed varying levels of impact during the observation window. The ping-slash24 signal, measuring ICMP reachability across IPv4 /24 prefixes, recorded a 5% drop from its peak. The gtr-norm signal, a forecast deviation from an expected traffic baseline, showed a 70% drop. The merit-nt signal, a backscatter measurement used as a proxy for aggregate connectivity, recorded a 60% drop from its peak.
The cause has not been publicly attributed.
Network conditions were reported as restored following the second disruption period.
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