The operator – in partnership with Huawei – said it has achieved speeds of 2Tbps over an optical core network link spanning over 700km between London and Dublin.

In addition it claims to have reached 5.6Tbps over a single optical fibre running on its trial network between its research facility in Adastral Park and the BT Tower in London. The 5.6Tbps speeds are said to be the equivalent of downloading 200 high-definition movies per second.