We have just experienced a period of intermittent packet loss between the gb1 region zones due to a flapping interface on one of our core switches. We have rerouted traffic and shutdown the affected interface and expect everything to recover quickly. We're currently continuing to investigate.
18:30 UTC: We've re-enabled the interface and are continuing to monitor it closely. Traffic is still being routed via alternative paths.
20:00 UTC: Traffic is now being routed normally again.