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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 22, Iss. 3 — Feb. 10, 2014
  • pp: 2465–2472

Novel flat datacenter network architecture based on scalable and flow-controlled optical switch system

Wang Miao, Jun Luo, Stefano Di Lucente, Harm Dorren, and Nicola Calabretta  »View Author Affiliations


Optics Express, Vol. 22, Issue 3, pp. 2465-2472 (2014)
http://dx.doi.org/10.1364/OE.22.002465


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Abstract

We propose and demonstrate an optical flat datacenter network based on scalable optical switch system with optical flow control. Modular structure with distributed control results in port-count independent optical switch reconfiguration time. RF tone in-band labeling technique allowing parallel processing of the label bits ensures the low latency operation regardless of the switch port-count. Hardware flow control is conducted at optical level by re-using the label wavelength without occupying extra bandwidth, space, and network resources which further improves the performance of latency within a simple structure. Dynamic switching including multicasting operation is validated for a 4x4 system. Error free operation of 40 Gb/s data packets has been achieved with only 1 dB penalty. The system could handle an input load up to 0.5 providing a packet loss lower that 10−5 and an average latency less that 500ns when a buffer size of 16 packets is employed. Investigation on scalability also indicates that the proposed system could potentially scale up to large port count with limited power penalty.

© 2014 Optical Society of America

OCIS Codes
(200.4650) Optics in computing : Optical interconnects
(060.4259) Fiber optics and optical communications : Networks, packet-switched
(060.6719) Fiber optics and optical communications : Switching, packet

ToC Category:
Subsystems for Optical Networks and Datacomms

History
Original Manuscript: November 7, 2013
Revised Manuscript: December 23, 2013
Manuscript Accepted: December 23, 2013
Published: January 29, 2014

Virtual Issues
European Conference and Exhibition on Optical Communication (2013) Optics Express

Citation
Wang Miao, Jun Luo, Stefano Di Lucente, Harm Dorren, and Nicola Calabretta, "Novel flat datacenter network architecture based on scalable and flow-controlled optical switch system," Opt. Express 22, 2465-2472 (2014)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-22-3-2465


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