American Samoa experienced a significant Border Gateway Protocol (BGP) disruption lasting more than four days. The event began on August 26 at approximately 17:35 UTC and concluded on August 31 at 00:30 UTC. The disruption was characterized by a severe degradation in the BGP control plane signal.
Technical Details
The BGP disruption recorded a severity score of 10,834. BGP is the protocol that manages how data packets are routed across the internet, and its degradation can impact network visibility and routing stability. During the event, the BGP median signal remained at a constant low value of 56 measurement points, indicating a sustained reduction in advertised network routes. Concurrently, active probing for IPv4 reachability showed a 14% drop from its peak performance level, though this data plane impact was less severe than the BGP anomaly.
The cause has not been publicly attributed.
Connectivity was reported restored at the end of the observation period.
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