What has happened?
At 12/06/2021 07:52:00 we lost one of our core waves from London 1 <-> Link 33
This was restored at 12/06/2021 16:30.
As we saw link down, failure over was done within <1 Second - therefore no impact is expected to any customer services.
Why did it happen?
A third party fibre provider started an emergency maintenance window - however the details held by them were incorrect.
These have now been updated so in future we will be notified of emergency maintenance.