Guam Connectivity Degradation Lasted Over Three Days
Guam experienced a significant internet connectivity degradation lasting more than three days, from July 5 to July 9. The disruption was most pronounced in network reachability measurements, with a severity score of 97,996 recorded for the primary affected signal.
Technical Details
The ping-slash24 signal, which measures ICMP reachability across IPv4 network blocks, recorded a severity score of 97,996. The signal showed a 20% drop from its peak value during the event. The Border Gateway Protocol (BGP) control plane signal, which tracks the visibility of network prefixes, remained stable with minimal deviation. The gtr-norm signal, which indicates deviation from a forecasted traffic baseline, showed a 68% drop from its peak. The merit-nt signal, a proxy for aggregate connectivity based on backscatter measurements, dropped 100% from its peak during the observation period.
The cause has not been publicly attributed.
Connectivity was reported restored by the end of the observation window.
