Elevated packet loss towards Arelion in Helsinki (HEL1)

Affected:

Network · HEL1

Duration

2 h 47

Reference

inc-20261001-1

Timeline

1. Resolved1 Oct 2026, 20:48 UTC

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

2. Monitoring1 Oct 2026, 20:09 UTC

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

3. Identified1 Oct 2026, 18:29 UTC

   The loss is confined to the Arelion port in Helsinki (HEL1). We have lowered its local preference to shift traffic to other upstreams while the carrier investigates.

4. Investigating1 Oct 2026, 18:01 UTC

   We are investigating reports of packet loss on traffic transiting Arelion from Helsinki (HEL1). Peering and other carriers are unaffected.

Were you affected? Open a ticket within 7 days and we credit your balance under the SLA.