Damaged European undersea cables impact internet connectivity worldwide

Submitted by Dave Hodges on Sunday, October 23, 2022 - 22:37.
INTERNET COLLAPSE

 Tech Spot

Why it matters: Multiple undersea cables in the south of France were cut overnight, making Internet access unreliable globally. Engineers fixed one broken link, and investigations are still ongoing. Fingers have been pointed at Russian submarines because of the Ukraine conflict, but investigators have not yet found any evidence supporting this assumption.

On Wednesday night, a serious incident involving an undersea cable in the south of France caused widespread internet connectivity issues. At least three fiber cables were severed at 20:30 (UTC), making Internet access slower for users in Europe, Asia, and the United States. Cloud companies quickly worked to fix the backbone.

 

According to a report by cloud security company Zscaler, the unexpected cable damage resulted in packet loss and a latency increase for websites and applications traversing the impacted paths. The company identified three broken links: Marseille-Lyon, Marseille-Milano, and Marseille-Barcelona. Zscaler made routing adjustments to internet traffic where possible to mitigate the issue. However, in some instances, actions were hindered by app and content providers still using the severed links.

In a later update posted at 1:03:15 UTC, Zscaler confirmed that workers had fixed one of the affected links resulting in a drop in packet loss and reduced latency for websites and internet applications. The remaining links (likely Marseille-Milano and Marseille-Barcelona) were confirmed severed through direct fiber testing. However, search operations to find the damaged points in the undersea cable are still in progress.

Read Full Story

Read more