Packet loss on the Arelion uplink in STO

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1. 解決済み2022/10/15 12:41 UTC

   The Arelion uplink in STO has been clean for 7 minutes with the session restored. Total duration of the degradation: 37 minutes. No machine lost connectivity; some traffic saw higher latency during the detour.

2. 監視中2022/10/15 12:34 UTC

   Arelion reports the card replaced. We have re-enabled the session and are watching error counters before calling this resolved.

3. 原因特定2022/10/15 12:12 UTC

   Arelion has confirmed a faulty line card on their side of the STO handover. We have withdrawn our prefixes from that session, and all traffic is leaving through GlobalConnect and STHIX for now. Loss has cleared; latency to some destinations is 3–6 ms higher while the detour is in place.

4. 調査中2022/10/15 12:08 UTC

   We are investigating packet loss of around 2% towards a subset of destinations from STO. Alerts fired at 12:04 UTC on the Arelion uplink; the GlobalConnect uplink and the STHIX peering are clean. Machines remain reachable.