Laos Experiences BGP Control Plane Disruption Lasting 14 Hours

Laos experienced a significant Border Gateway Protocol (BGP) control plane disruption beginning on August 13, 2026, which lasted for nearly 14 hours. The event, which started at 10:40 UTC and concluded around 00:30 UTC on August 14, primarily affected the visibility of network prefixes.

Technical Details

The disruption recorded a severity score of 900, with the BGP signal being the primary metric affected. The BGP signal measures the control plane visibility and reachability announcements for the country’s internet prefixes. During the event, the number of visible BGP routes remained stable at 365, indicating no mass withdrawal of prefixes but a potential loss of path diversity or stability. Concurrent measurements from other signals showed varied impacts: aggregate traffic volume, as measured by a normalized traffic signal, dropped by 65% from its peak, while a backscatter measurement signal saw a 68% decline.

The cause has not been publicly attributed.

Connectivity was reported restored by the end of the observation period.