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Explore a groundbreaking approach to datacenter network architecture in this 41-minute research talk that addresses the critical challenges facing modern cloud infrastructure. Learn how optical circuit-switching (OCS) technologies can revolutionize datacenter networks by providing sustainable, energy-efficient solutions that overcome the limitations of traditional CMOS-based electrical packet-switch ASICs in the post-Moore's law era. Discover the innovative OSSV architecture that combines an OCS-based core for ToR-level connectivity with OCS-based reconfigurable edge components that dynamically reshape traffic patterns. Understand the novel Skewness and Volume (SV) minimization optimization framework designed to balance traffic distribution and minimize inter-rack communication overhead. Examine how optical circuit-switching offers unique advantages including data rate agnosticism, negligible power consumption, minimal forwarding latency, and reduced upgrade requirements. Analyze comprehensive simulation results and testbed evaluations demonstrating significant performance improvements over traditional all-optical DCN cores under diverse traffic scenarios. Gain insights into the practical implementation challenges and solutions for next-generation cloud infrastructures that must support demanding applications like HPC, distributed machine learning, and deep neural networks with stringent performance requirements while maintaining sustainability and cost-effectiveness.
