Abstract

This paper reports all-optical, function programmable, transparent, intra- and inter-data center networking (DCN) using space and time-division multiplexing (SDM/TDM) within data centers and wavelength division multiplexing (WDM) between data centers. A multielement fiber is used for SDM transmission to provide a large quantity of optical links between the top-of-racks (ToRs) and the function programmable cluster switch. Beam-steering large-port-count fiber switches, used as central cluster switches and intercluster switch, provide a single hop optical circuit switching solution, and also enable network function programmability for DCN to support variable traffic patterns and different network functions. A TDM switch as a plug-in function provides intra-cluster communication with variable capacity and low latency. The flat-structured intra data center architecture, with a circuit-switched SDM and TDM hybrid network enables scalable, large-capacity and low-latency DCN communication. In addition, all-optical ToR-to-ToR inter-DCN is realized through metro/core networks. A highly-nonlinear fiber based all-optical SDM-to-WDM converter transfers three SDM signals to three-carrier spectral superchannel signals, which are transmitted to the destination DCN, through the metro/core networks. The all-optical ToR-ToR cross-DCN connections enable the geographically distributed DCNs to appear as one big data center.

© 2015 IEEE

Scalable and low server-to-server latency data center network architecture based on optical packet inter-rack and intra-rack switching

Georgios Drainakis, Peristera Baziana, and Adonis Bogris
J. Opt. Commun. Netw. 15(11) 804-819 (2023)

HiFOST: A Scalable and Low-Latency Hybrid Data Center Network Architecture Based on Flow-Controlled Fast Optical Switches

Fulong Yan, Xuwei Xue, and Nicola Calabretta
J. Opt. Commun. Netw. 10(7) B1-B14 (2018)

OPSquare: A Flat DCN Architecture Based on Flow-Controlled Optical Packet Switches

Fulong Yan, Wang Miao, Oded Raz, and Nicola Calabretta
J. Opt. Commun. Netw. 9(4) 291-303 (2017)

Collision-free distributed MAC protocol for passive optical intra-rack data center networks

Peristera Baziana and Georgios Drainakis
J. Opt. Commun. Netw. 14(8) 654-666 (2022)

Fully programmable and scalable optical switching fabric for petabyte data center

Zhonghua Zhu, Shan Zhong, Li Chen, and Kai Chen
Opt. Express 23(3) 3563-3580 (2015)