New Zealand business and wholesale services provider Kordia has announced a ‘multi-million dollar’ investment in its fibre-optic backhaul network, with the first sections of the upgraded infrastructure going live in Auckland and between Hamilton, Palmerston North and Wellington. The project is using dense wavelength division multiplexing (DWDM) and Ethernet technologies from Ciena. DWDM allows multiple high capacity circuits to be carried on a single optical fibre by using light of different wavelengths. Additional connectivity and interconnection nodes between Auckland, Tauranga, Napier and Wellington are expected to be available in early 2016. Kordia provides connectivity for enterprises, ISPs and other telcos.