Some Ethernet customers have seen a routing blip today. This is mainly those that have a secondary block of IPs routed via your Ethernet link and related to that additional block.
We should have posted an "at risk" notice about some very minor routing changes tidying up after all of the recent work in our core network. I genuinely did not expect any impact - we have done simple routing changes many times in the past without experiencing any issues.
Unfortunately the changes uncovered an underlying problem with the redundancy logic, and hence something that should have had no impact did in fact have an impact. This was fixed quickly within minutes of the report.
There is other work we expect to do tomorrow morning before 9am, including sorting the underlying issue we have uncovered today. If there are any issues you encounter with routing in the morning, please do contact support.
Sorry for any inconvenience caused.