Laboratory tests have reached 800Gbps before, but this is the first time it’s gone long distance, covering the 410km between BT’s Adastral Park research centre, near Ipswich in Suffolk, and the BT Tower in London, using equipment from network kit vendor Ciena. The surprising thing is that the test was successful on fibre which was previously not considered good enough to carry 10Gbps.

via BT Lights Up World’s First 800Gbps Fibre Super Channel.