Elevated packet loss towards GTT in Amsterdam (AMS1)

Affected:

Network · AMS1

Duration

2 h 34

Reference

inc-20260725-1

Timeline

1. Resolved25 Jul 2026, 13:12 UTC

   GTT confirmed a faulty line card on their side and replaced it. The port is back in production with normal loss and latency.

2. Monitoring25 Jul 2026, 12:44 UTC

   Traffic is now flowing through the remaining upstreams and the AMS-IX exchange. Loss has returned to zero; we are monitoring before restoring the port.

3. Identified25 Jul 2026, 11:13 UTC

   The loss is confined to the GTT port in Amsterdam (AMS1). We have lowered its local preference to shift traffic to other upstreams while the carrier investigates.

4. Investigating25 Jul 2026, 10:38 UTC

   We are investigating reports of packet loss on traffic transiting GTT from Amsterdam (AMS1). Peering and other carriers are unaffected.

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