Principles and Practices of Interconnection Networks
Principles and Practices of Interconnection Networks
Flattened butterfly: a cost-efficient topology for high-radix networks
Proceedings of the 34th annual international symposium on Computer architecture
A scalable, commodity data center network architecture
Proceedings of the ACM SIGCOMM 2008 conference on Data communication
Phastlane: a rapid transit optical routing network
Proceedings of the 36th annual international symposium on Computer architecture
VL2: a scalable and flexible data center network
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Understanding data center traffic characteristics
Proceedings of the 1st ACM workshop on Research on enterprise networking
Helios: a hybrid electrical/optical switch architecture for modular data centers
Proceedings of the ACM SIGCOMM 2010 conference
The application of optical packet switching in future communication networks
IEEE Communications Magazine
STOLAS: switching technologies for optically labeled signals
IEEE Communications Magazine
Passive optical network architecture based on waveguide grating routing
IEEE Journal on Selected Areas in Communications
Architectures and performance of AWG-based optical switching nodes for IP networks
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Power consumption evaluation of all-optical data center networks
Cluster Computing
Review: A survey on architectures and energy efficiency in Data Center Networks
Computer Communications
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This paper discusses the architecture and performance studies of Datacenter Optical Switch (DOS) designed for scalable and high-throughput interconnections within a data center. DOS exploits wavelength routing characteristics of a switch fabric based on an Arrayed Waveguide Grating Router (AWGR) that allows contention resolution in the wavelength domain. Simulation results indicate that DOS exhibits lower latency and higher throughput even at high input loads compared with electronic switches or previously proposed optical switch architectures such as OSMOSIS [4, 5] and Data Vortex [6, 7]. Such characteristics, together with very high port count on a single switch fabric make DOS attractive for data center applications where the traffic patterns are known to be bursty with high temporary peaks [13]. DOS exploits the unique characteristics of the AWGR fabric to reduce the delay and complexity of arbitration. We present a detailed analysis of DOS using a cycle-accurate network simulator. The results show that the latency of DOS is almost independent of the number of input ports and does not saturate even at very high (approx 90%) input load. Furthermore, we show that even with 2 to 4 wavelengths, the performance of DOS is significantly better than an electrical switch network based on state-of-the-art flattened butterfly topology.