Telstra, Ericsson, and Ciena demonstrated 400 Gbps speeds over 61.5 GHz spectrum on Telstra’s transmission network in Melbourne, attaining what the companies termed "the highest spectral efficiency per fibre pair ever achieved in a live environment." This implies that a maximum 30.4 terabit per second (Tbps) bandwidth is possible on Telstra’s transmission network in Melbourne. The highest previous mark was 25.6 Tbps.
Ciena said that result was made...