We've noticed several circuits in the South West regions are showing packet loss and severely reduced throughput. This has been reported to BT and they are investigating.
Here is an example graph
The poor throughput and packet loss with this same pattern has also been noted in some areas in the South
The packet loss has appeared to have stopped shortly after 2255 last night.
BT have identified a core link showing this packet loss, and have swapped line cards to resolve the loss on this core link.