We had overnight problems with a faulty switch in London. details here: https://aastatus.net/37744 Bringing the replacement switch back in to service is causing some disruption to services though.
We are reverting our switch replacement work as it is causing problems.
Services should be starting to be restored now.
Our network is stable. We do apologise for the disruption this caused, especially at the beginning of the day. The faulty switch will be looked in to one we have it back it at office, but it looks like a hardware failure. The replacement switch is currently still powered down and we will plan another trip to the datacentre, out of hours, to bring it back in to service.