Sub-μs Latency High-Port Optical Packet Switch Fabrics for Disaggregated Computing: The Hipoλaos OPS Architecture

We present a high-radix optical switch architecture, called Hipoλaos, that exploits hybrid Broadcast-and-Select/Wavelength routing along with small-size optical buffering, towards meeting the requirements of Disaggregated Data Centers. The architecture is evaluated for a 256-node system through simulations revealing sub-μs latency, while feasibility of the switch is experimentally demonstrated at 10Gb/s.

[1]  N. Pleros,et al.  40 Gb/s NRZ Wavelength Conversion Using a Differentially-Biased SOA-MZI: Theory and Experiment , 2011, Journal of Lightwave Technology.

[2]  H. J. S. Dorren,et al.  Scaling low-latency optical packet switches to a thousand ports , 2012, IEEE/OSA Journal of Optical Communications and Networking.

[3]  P. Zakynthinos,et al.  An SOA-MZI NRZ Wavelength Conversion Scheme With Enhanced 2R Regeneration Characteristics , 2009, IEEE Photonics Technology Letters.

[4]  Hiroshi Hasegawa,et al.  A large-scale wavelength routing optical switch for data center networks , 2013, IEEE Communications Magazine.

[5]  Nikos Pleros,et al.  High-port low-latency optical switch architecture with optical feed-forward buffering for 256-node disaggregated data centers. , 2018, Optics express.

[6]  Georgios Zervas,et al.  Hardware programmable network function service chain on optical rack-scale data centers , 2017, 2017 Optical Fiber Communications Conference and Exhibition (OFC).

[7]  Scott Shenker,et al.  Network support for resource disaggregation in next-generation datacenters , 2013, HotNets.

[8]  T. Aalto,et al.  Multicast-Enabling Optical Switch Design Employing Si Buffering and Routing Elements , 2018, IEEE Photonics Technology Letters.

[9]  Kostas Katrinis,et al.  Rack-scale disaggregated cloud data centers: The dReDBox project vision , 2016, 2016 Design, Automation & Test in Europe Conference & Exhibition (DATE).

[10]  Dawei Wang,et al.  A 448 × 448 optical cross-connect for high-performance computers and multi-terabit/s routers , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[11]  G. Zervas,et al.  Disaggregated compute, memory and network systems: A new era for optical data centre architectures , 2017, 2017 Optical Fiber Communications Conference and Exhibition (OFC).