Journal ArticleDOI
Optical RF Tone In-Band Labeling for Large-Scale and Low-Latency Optical Packet Switches
TLDR
An optical label processor for the RF tone in-band optical label based on parallel and asynchronous processing allows the optical packet switch with an exponential increase of number of ports at the expense of limited increase in the latency and the complexity.Abstract:
We propose an RF tone in-band labeling technique that is able to support large-scale and low-latency optical packet switch. This approach is based on N in-band wavelengths, each carrying M radio frequency (RF) tones. The wavelengths and the tones have a binary value, and are able to encode 2N×M possible routing address. We develop an optical label processor for the RF tone in-band optical label based on parallel and asynchronous processing. It allows the optical packet switch with an exponential increase of number of ports at the expense of limited increase in the latency and the complexity. By using RF tone in-band labeling technique, we demonstrate error free (bit error rate <; 10-9) optical packet switching operation for both 160 Gb/s packets and 40 Gb/s packets. We further investigate the scalability, the latency and the optical power fluctuation tolerance of the proposed RF tone in-band labeling technique. We show that 30 label bits are able to be delivered using single in-band wavelength, and the label processor introduces an extra latency of less than 7 ns.read more
Citations
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Journal ArticleDOI
Opsquare: A flat DCN architecture based on flow-controlled optical packet switches
TL;DR: A novel optical flat DCN architecture in which the number of interconnected ToRs scales as the square of the optical packet switches’ (OPS) port count (OPSquare) is proposed and investigated, which has a cost saving of 56% compared with H-LION for a 160,000-server DCN.
Journal ArticleDOI
Novel flat datacenter network architecture based on scalable and flow-controlled optical switch system
TL;DR: An optical flat datacenter network based on scalable optical switch system with optical flow control with RF tone in-band labeling technique allowing parallel processing of the label bits ensures the low latency operation regardless of the switch port-count.
Journal ArticleDOI
HiFOST: a scalable and low-latency hybrid data center network architecture based on flow-controlled fast optical switches
TL;DR: This work proposes a novel hybrid DCN architecture based on distributed flow-controlled fast optical switches (FOS) and modified top-of-the-rack (TOR) switches (HiFOST) and investigates the performance of HiFOST DCN with different TOR buffer sizes, optical link capacities, elastic allocation of transceivers, and network scales under realistic data center (DC) traffic.
Journal ArticleDOI
Towards Petabit/s All-Optical Flat Data Center Networks Based on WDM Optical Cross-Connect Switches with Flow Control
TL;DR: A novel all-optical flat DCN architecture OPSquare is presented that potentially addresses the scaling issues by employing parallel intra-/inter-cluster switching networks, distributed fast WDM optical cross-connect (OXC) switches, and a novel top-of-rack (ToR) switch architecture.
Journal ArticleDOI
Low latency and efficient optical flow control for intra data center networks.
TL;DR: A bi-directional system is implemented for generating flow control signal by reusing label wavelength and the transmission link within the same WDM channel to demonstrate a highly spectral efficient optical flow control technique for intra data center networks.
References
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Journal ArticleDOI
Transparent optical packet switching: the European ACTS KEOPS project approach
C. Guillemot,Monique Renaud,P. Gambini,Christopher Janz,Ivan Andonovic,R. Bauknecht,Bruno Bostica,Marco Burzio,Franco Callegati,Maurizio Casoni,Dominique Chiaroni,Fabrice Clérot,S.L. Danielsen,Francois Dorgeuille,Arnaud Dupas,Andre Franzen,P.B. Hansen,David K. Hunter,A. Kloch,R. Krahenbuhl,Bruno Lavigne,A. Le Corre,Carla Raffaelli,Michael Schilling,Jean-Claude Simon,Libero Zucchelli +25 more
TL;DR: The work carried out under the European ACTS KEOPS (KEys to Optical Packet Switching) project, centering on the definition, development and assessment of optical packet switching and routing networks capable of providing transparency to the payload bit rate, is reviewed in this article.
Journal ArticleDOI
IST-LASAGNE: towards all-optical label swapping employing optical logic gates and optical flip-flops
Francisco Ramos,E. Kehayas,José Manuel Guaita Martínez,R. Clavero,Javier Martí,L. Stampoulidis,Dimitris Tsiokos,Hercules Avramopoulos,J. Zhang,P.V. Holm-Nielsen,Nan Chi,Palle Jeppesen,N. Yan,Idelfonso Tafur Monroy,A.M.J. Koonen,MT Martin Hill,Yong Liu,H.J.S. Dorren,R. C. van Caenegem,Didier Colle,Mario Pickavet,B. Riposati +21 more
TL;DR: The Information Society Technologies-all-optical LAbel SwApping employing optical logic gates in NEtwork nodes (IST-LASAGNE) project as mentioned in this paper aims at designing and implementing the first, modular, scalable, and truly alloptical photonic router capable of operating at 40 Gb/s.
Proceedings ArticleDOI
Transparent optical packet switching: The European ACTS KEOPS project approach
TL;DR: The challenge addressed by the KEOPS project was to combine the advantages of the relatively coarse-grained WDM techniques with emerging all-optical switching capabilities to yield a high-throughput optical platform directly underpinning next generation data networks (ATM, IP).
Journal ArticleDOI
Optical-packet-switched interconnect for supercomputer applications[Invited]
TL;DR: A low-latency, high-throughput scalable optical interconnect switch for high-performance computer systems that features a broadcast-and-select architecture based on wavelength- and space-division multiplexing that is optimized for low latency and high use is described.
Journal ArticleDOI
A summary of the HORNET project: a next-generation metropolitan area network
TL;DR: The article summarizes the accomplishments of the HORNET project, including the design, analysis, and demonstration of a metro architecture and a set of protocols that is an excellent candidate for next-generation high-capacity metro networks.