AgileDCN: An Agile Reconfigurable Optical Data Center Network Architecture

Dinh Danh Le, Liam P. Barry, Daniel C. Kilper, Philip Perry, Jingyan Wang, Conor McArdle

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)
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This paper presents a detailed examination of a novel data center network (DCN) that can satisfy the high capacity and low latency requirements of modern cloud computing applications. This reconfigurable architecture called AgileDCN uses fast-switching optical components with a centralized control function and workload scheduler. By providing a highly flexible optical network fabric between server racks, very high network efficiencies can be achieved even under imbalanced loading patterns. Our simulation results show that, at high (70%) loads, TCP flow completion times in the AgileDCN are significantly lower than in an equivalent electronic leaf-spine network.

Original languageEnglish
Article number9107450
Pages (from-to)4922-4934
Number of pages13
JournalJournal of Lightwave Technology
Issue number18
Early online date3 Jun 2020
Publication statusPublished (in print/issue) - 15 Sept 2020

Bibliographical note

Funding Information:
This work was supported in part by the National Science Foundation (NSF) under Grant CNS-1827923, Grant CNS-1650669, Grant CNS-1737453, and Grant EEC-0812072, and in part by the Science Foundation of Ireland (SFI) under the US-Ireland R&D Partnership Programme (SFI project code 15/USC2C/I3132), the SFI Centres CONNECT, and IPIC.
(Corresponding author: Jingyan Wang.) Dinh Danh Le and Jingyan Wang are with the School of Electronic Engineering, Faculty of Engineering and Computing, Dublin City University, D09 V209 Dublin, Ireland, and also with the Hong Duc University (HDU), Thanh Hoa 40000-42000, Vietnam (e-mail:;

Funding Information:
The authors would like to acknowledge the support of the Science Foundation of Ireland (SFI) under the US-Ireland R&D Partnership Programme (SFI project code 15/US C2C/I3132), the SFI Centres CONNECT and IPIC.

Publisher Copyright:
© 1983-2012 IEEE.

Copyright 2020 Elsevier B.V., All rights reserved.


  • Agile reconfigurability
  • data center networks
  • optical networking
  • traffic scheduling


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