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Logs recorded on Microsoft’s Azure status page reveal that the company’s cloud services were disrupted after several international cables in the Red Sea were severed. Although Microsoft has since rerouted traffic with the assistance of its partners, latency between Asia and Europe may still increase.
The Red Sea hosts a dense network of submarine cables laid by international telecommunications and technology companies, serving as vital conduits linking Europe, Asia, and Africa. These undersea cables have suffered multiple cuts in the past.
Microsoft noted that network traffic originating in or terminating at Asia or Europe and passing through the Middle East was affected. However, thanks to remediation efforts by its engineering teams, Azure services have now returned to normal.
The company did not disclose which submarine cables were damaged or the cause of the disruption. It has previously acknowledged that repairing severed fiber-optic lines can take considerable time. Accordingly, Microsoft pledged to continue monitoring, rebalancing, and optimizing routes to minimize customer impact.
Typically, multiple submarine cables interconnect continents. When one or more are severed, network operators reroute traffic, a process that invariably introduces higher latency and reduced capacity.
Repairing these cables is notoriously complex, particularly in the Red Sea, where current security risks make dispatching repair vessels hazardous. As a result, full restoration of service may take several months.
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