Data center interconnect explained

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]

Notes and References

  1. Kanakis . Giannis . Iliadis . Nikos . Soenen . Wouter . Moeneclaey . Bart . Argyris . Nikolaos . Kalavrouziotis . Dimitrios . Spiga . Silvia . Bakopoulos . Paraskevas . Avramopoulos . Hercules . High-Speed VCSEL-Based Transceiver for 200 GbE Short-Reach Intra-Datacenter Optical Interconnects . Applied Sciences . 18 June 2019 . 9 . 12 . 2488 . 10.3390/app9122488. free .
  2. Yue . Yang . Wang . Qiang . Anderson . Jon . Experimental Investigation of 400 Gb/s Data Center Interconnect Using Unamplified High-Baud-Rate and High-Order QAM Single-Carrier Signal . Applied Sciences . 15 June 2019 . 9 . 12 . 2455 . 10.3390/app9122455. free .
  3. Web site: What is DCI? . Ciena Corporation . 24 August 2024.
  4. Web site: Engebretson . Joan . Lumen ExaSwitch Rethinks Hyperscale Interconnection with Google, Microsoft - Telecompetitor . www.telecompetitor.com . 24 August 2024.
  5. Yue . Yang . Wang . Qiang . Yao . Jian . O'Neil . Jason . Pudvay . Daniel . Anderson . Jon . 400GbE Technology Demonstration Using CFP8 Pluggable Modules . Applied Sciences . 25 October 2018 . 8 . 11 . 2055 . 10.3390/app8112055. free .
  6. Raza . Aadil . Iqbal . Saeed . Iqbal . Muhammad . Mirza . Jawad . Ghafoor . Salman . Atieh . Ahmad . 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 . March 2023 . 55 . 3 . 10.1007/s11082-023-04572-8.
  7. Overton . Gail . Datacenter cabling bottleneck cleared via free-space optical interconnects . Laser Focus World . 2018 . 54 . 9 . 13–14.

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