Novel flat DCN architecture based on optical switches with fast flow control

We investigate the performance of a novel flat data center network (DCN) architecture based on distributed buffer-less optical switches and fast flow control. Scalability of the novel DCN is assessed by numerical simulation of medium and large size data centers reporting an end-to-end latency of less than 8μs (including retransmission), a packet loss <;10^-8 and >9Tb/s average network throughput under load of 0.4.