A datacenter interconnect (DCI) is a connection between data centers and between the components within them.[1][2] The goal of a data center interconnect is to provide high bandwidth in order to maximize the utility of the data center.[2] Inter data center interconnects must also be able to transmit over long distances.[2][3] By using specialized infrastructure such as optical communication and direct connection between datacenters, DCI is able to provide much higher bandwidths than typical networks.[2] This is valuable to large cloud computing companies.[4] In 2017, IEEE standards were created to support 400 GbE per wavelength optical communications.[2][5] For short range connections within a data center, optical DCI can provide the advantage over traditional DCI of not needing cables.[6][7]
References
edit- ^ Kanakis, Giannis; Iliadis, Nikos; Soenen, Wouter; Moeneclaey, Bart; Argyris, Nikolaos; Kalavrouziotis, Dimitrios; Spiga, Silvia; Bakopoulos, Paraskevas; Avramopoulos, Hercules (18 June 2019). "High-Speed VCSEL-Based Transceiver for 200 GbE Short-Reach Intra-Datacenter Optical Interconnects". Applied Sciences. 9 (12): 2488. doi:10.3390/app9122488.
- ^ a b c d e Yue, Yang; Wang, Qiang; Anderson, Jon (15 June 2019). "Experimental Investigation of 400 Gb/s Data Center Interconnect Using Unamplified High-Baud-Rate and High-Order QAM Single-Carrier Signal". Applied Sciences. 9 (12): 2455. doi:10.3390/app9122455.
- ^ "What is DCI?". Ciena Corporation. Retrieved 24 August 2024.
- ^ Engebretson, Joan. "Lumen ExaSwitch Rethinks Hyperscale Interconnection with Google, Microsoft - Telecompetitor". www.telecompetitor.com. Retrieved 24 August 2024.
- ^ Yue, Yang; Wang, Qiang; Yao, Jian; O'Neil, Jason; Pudvay, Daniel; Anderson, Jon (25 October 2018). "400GbE Technology Demonstration Using CFP8 Pluggable Modules". Applied Sciences. 8 (11): 2055. doi:10.3390/app8112055.
- ^ Raza, Aadil; Iqbal, Saeed; Iqbal, Muhammad; Mirza, Jawad; Ghafoor, Salman; Atieh, Ahmad (March 2023). "400 Gbps/λ PAM-4 data transmission over FSO link by employing space division multiplexing for data center interconnects using LG modes enabled VCSELs". Optical and Quantum Electronics. 55 (3). doi:10.1007/s11082-023-04572-8.
- ^ Overton, Gail (2018). "Datacenter cabling bottleneck cleared via free-space optical interconnects". Laser Focus World. Vol. 54, no. 9. pp. 13–14.
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