Fibre cut on the Arelion path out of AMS

タイムライン

1. 解決済み2024/05/12 1:30 UTC

   Full redundancy in AMS restored at 01:30 UTC. Duration of the reduced-redundancy state: 4 h 26 min. No machine lost connectivity at any point; this is what the second carrier is for.

2. 監視中2024/05/12 1:15 UTC

   The splice is complete and the Arelion link is back at full light level. We are re-enabling it gradually and watching error counters.

3. 原因特定2024/05/11 22:12 UTC

   Arelion has confirmed a fibre cut caused by third-party roadworks about 9 km from the site. A splice crew has been dispatched. We are operating on the second carrier plus the exchange for the duration, with headroom for peak traffic.

4. 調査中2024/05/11 21:08 UTC

   The Arelion uplink in AMS went down at 21:04 UTC. Traffic failed over to Lumen and NL-ix within seconds; capacity is reduced but no machine is unreachable. Arelion reports a loss of light on the metro fibre.