PON data centre design with AWGR and server based routing

Passive Optical Networks (PONs) with their proven performance in access networks can provide solutions to the challenges facing modern data centres. In this paper, we study a PON architecture where Arrayed Waveguide Grating Routers (AWGRs) and servers are used to route traffic. We optimize the wavelength routing and assignment in the design and show through a benchmark study that the PON data centre architecture reduces the power consumption by 83% compared to the Fat-Tree architecture and 93% compared to the BCube architecture.