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  1. IL-0348 Scaleway's FR-PAR region lost public internet connectivity when one 100 Gbps backbone link was saturated
    Scaleway2025
    Symptoms

    On 10 March 2025 at 16:22 UTC, public internet connectivity in Scaleway's FR-PAR region broke for all products. Most internet traffic between the FR-PAR-2 availability zone and the rest of the PAR region was blackholed for about five minutes, while VPC traffic and Dedibox RPN kept working.

    Packet lossService outageHigh latency
    Trigger

    While Scaleway's network team connected a new data center to the FR-PAR backbone, a human mistake in a router configuration rerouted more than 1 Tbps of traffic between OpCore DC3 and DC5 through a single 100 Gbps link.

    Root cause
    Operator error
    Component
    Backbone network (WAN)Object storageAuthoritative DNS servers and records
    Contributing factor
    Automation amplification
    Detection

    The router configuration error was detected quickly and rolled back within four minutes.

    Remediation
    • Rolled back the router configuration, restoring the correct configuration at 16:27 UTC
    Action items
    • Harden the peer review and production communication process for changes
    • Add failsafes and tests before network configuration is applied at backbone level
    • Deploy the fix for the Object Storage synchronisation software issue
    View case
Check your cluster for this

This case involves Backbone network (WAN) and Authoritative DNS servers and records. kubegap audits a Kubernetes cluster for gaps like these, read-only, from Claude Code or Codex; its checks cite public reports like the ones in this library.

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By root cause1

Operator error1 case

Component
Backbone network (WAN)Authoritative DNS servers and recordsObject storage
Contributing factor
Automation amplification
Organisation
Scaleway
  1. IL-0348 Scaleway's FR-PAR region lost public internet connectivity when one 100 Gbps backbone link was saturated
    Scaleway2025