Degraded optic on the NL-ix port in AMS

时间线

1. 已解决2023年1月6日 10:08 UTC

   All NL-ix sessions in AMS are up with zero errors for 17 minutes. Duration: 1 h 20 min. Latency to exchange peers was a few milliseconds higher during the detour.

2. 观察中2023年1月6日 09:51 UTC

   The optic has been replaced and the port is back up with clean counters. Peering sessions are re-establishing.

3. 已确定原因2023年1月6日 09:19 UTC

   The receive power on the optic has dropped below threshold. We have shut the port; traffic to exchange peers is going via Lumen and Cogent while an engineer replaces the optic.

4. 调查中2023年1月6日 08:54 UTC

   The NL-ix port in AMS is showing a rising CRC error count since 08:48 UTC. A small share of traffic over the exchange is being retransmitted. Transit paths are unaffected.