AI Article Synopsis
- The text discusses a shift from traditional data center architectures to disaggregated systems designed for better resource use and lower costs.
- It presents a new optical switch architecture that combines broadcast-and-select methods with optical buffering, achieving high performance at 10Gb/s with minimal power loss.
- Network simulations in a 256-node setup showed very low latency of 605 nanoseconds and an 80% throughput rate using optical buffers, highlighting the effectiveness of the proposed system.
Article Abstract
Departing from traditional server-centric data center architectures towards disaggregated systems that can offer increased resource utilization at reduced cost and energy envelopes, the use of high-port switching with highly stringent latency and bandwidth requirements becomes a necessity. We present an optical switch architecture exploiting a hybrid broadcast-and-select/wavelength routing scheme with small-scale optical feedforward buffering. The architecture is experimentally demonstrated at 10Gb/s, reporting error-free performance with a power penalty of <2.5dB. Moreover, network simulations for a 256-node system, revealed low-latency values of only 605nsec, at throughput values reaching 80% when employing 2-packet-size optical buffers, while multi-rack network performance was also investigated.
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| http://dx.doi.org/10.1364/OE.26.008756 | DOI Listing |
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