London Fibre Ring Flap

Event Started
2025-09-24 13:02
Report Published
2025-09-24 13:05
Last Updated
2025-09-24 14:58
Event Finished
Ongoing

We've seen all light on the THW-IXN path of our London dark fibre ring flap down and up quickly. We're investigating.

Timeline (most recent first)
  • 2025-09-24
    13:20:00

    One of our switches in IXN, rs145, spontaneously rebooted:

    system,error,critical router was rebooted without proper shutdown by watchdog timer

    We're investigating why.

  • 2025-09-24
    13:11:00

    One of our switches in THW, rs142, is showing 100% CPU usage for a prolonged time now, with packets traversing slow path (via the CPU) rather than through the merchant silicon. We've issued a reboot.