Singapore Experienced Brief Connectivity Disruption Early Tuesday

Singapore registered a brief but significant degradation in network connectivity early Tuesday, August 11. The disruption, which lasted approximately 1.2 hours, was most pronounced in a specific traffic measurement signal, with a peak severity score of 2,944 recorded between 03:52 and 04:30 UTC.

Technical Details

The event consisted of two distinct periods of degradation. The first occurred from 03:19 to 03:28 UTC, registering a severity score of 676. A second, more substantial disruption began at 03:52 UTC and continued until 04:30 UTC, achieving a peak severity score of 2,944. The primary affected metric was the merit-nt signal, which measures backscatter traffic as a proxy for aggregate network connectivity. This signal experienced an 81% drop from its peak value during the event.

Other key internet measurement signals showed minimal deviation. Border Gateway Protocol (BGP) control plane visibility and active ICMP reachability probing across IPv4 /24 prefixes remained stable, showing less than a 1% drop from normal levels. A forecast model for traffic volume also indicated a deviation, recording a 46% drop from its expected baseline.

Reported Cause

The cause of the disruption has not been publicly attributed by network operators or authorities.

Connectivity was reported restored by 04:30 UTC.