摘要
The rise of Cloud Computing and Big Data has created the need for morepowerful warehouse-scale cloud data centers,which usually comprise hundreds of thousands ofservers with highaccess bandwidth(>10Gb/s)or more,and cost-effective intra-and interdata center networks(DCNs)to provide switching and interconnect among all servers.However,the current DCNs sufferfrom limited throughput,large latencies and highpower consumption,and will not be able to sustainthe projected future DCN traffic demandswithout consuming excessive amounts of power.
The rise of Cloud Computing and Big Data has created the need for morepowerful warehouse-scalecloud data centers, which usually comprise hundreds of thousands ofservers with highaccess bandwidth （〉10Gb/s） or more, and cost-effective intra- and inter- data center networks（DCNs） to provide switching and interconnect among all servers. However, the current DCNs sufferfrom limited throughput, large latencies and highpower consumption.
