We have confirmed this situation has been resolved and is not expected to reoccur. See the reason-for-outage below:
GTT (London, Poplar):
2025-07-14 21:08:47 BST - detected a short isolation with devices in London, UK, due to a reboot of a line card. Connectivity restored without intervention. Issue to be checked additionally with equipment vendor.
Scaleblade:
2025-07-14 21:05:47 - GTT network fault identified and equipment automatically failed over to RETN as our secondary site upstream. ...