Solomon Islands Sustained Connectivity Disruption for Four Days

An internet connectivity disruption in the Solomon Islands persisted for approximately four days, beginning on July 31 and ending on August 4. The event was characterized by a significant degradation in the Border Gateway Protocol (BGP) control plane, a key signal for network routing visibility.

Technical Details

The disruption recorded a severity score of 16,735. The primary affected signal was BGP, which measures the visibility of network prefixes in the global routing system. The BGP signal remained at a constant, low level for the duration of the event.

Concurrently, other network health indicators showed substantial declines. The gtr-norm signal, which measures deviations from expected traffic volumes, fell by 83% from its peak. The merit-nt signal, a proxy for aggregate connectivity derived from backscatter measurements, dropped by 100%. The ping-slash24 signal, which measures ICMP reachability across IPv4 network blocks, showed a 17% reduction in reachable prefixes.

The cause has not been publicly attributed. Connectivity was reported restored by the end of the observation period.