Large-scale Dynamic Reconfigurable Networks Project

Large-scale networks, such as datacenters and wide-area networks, are the foundation of modern online services. As the world is recovering from COVID-19, there is a vital reliance on online services. However, today's networks are struggling to simultaneously deliver high bandwidth, low end-to-end latency, and high availability requirements imposed by emerging workloads, such as machine learning, remote video calls, augmented reality, and health care.

The ReconfigNets project focuses on enabling physical-layer reconfigurability in large-scale networks. This project includes network architectures, algorithms, and protocols that increase efficiency and reduce the cost of large-scale networks by leveraging emerging hardware technologies with reconfigurability baked into them.

Our team believes reconfigurability will be an intrinsic part of future networks and work towards realizing this vision. This page includes our publications and open-source code of various systems on ReconfigNets.
ARROW: Traffic Engineering for Reconfigurable WAN
Cerberus: The Power of Choices in Datacenter Topology Design (A Throughput Perspective)
C. Griner, J. Zerwas, A. Blenk, S. Schmid, M. Ghobadi, and C. Avin
To appear

ARROW: Restoration-Aware Traffic Engineering
Z. Zhong, M. Ghobadi, A. Khaddaj, J. Leach, Y. Xia, Y. Zhang
Paper | Slides | Video | BibTeX | Code arrow
News article: Who Can Bend Light for Cheaper Internet?
@inproceedings{zhong2021arrow, title={ARROW: restoration-aware traffic engineering}, author={Zhong, Zhizhen and Ghobadi, Manya and Khaddaj, Alaa and Leach, Jonathan and Xia, Yiting and Zhang, Ying}, booktitle={Proceedings of the 2021 ACM SIGCOMM 2021 Conference}, pages={560--579}, year={2021} }

BOW: First Real-World Demonstration of a Bayesian Optimization System for Wavelength Reconfiguration
Z. Zhong, M. Ghobadi, M. Balandat, S. Katti, A. Kazerouni, J. Leach, M. McKillop, Y. Zhang
OFC 2021
Paper | Slides | BibTeX | Code bow
Postdeadline Paper
@inproceedings{zhong2021bow, title={BOW: First Real-World Demonstration of a Bayesian Optimization System for Wavelength Reconfiguration}, author={Zhong, Zhizhen and Ghobadi, Manya and Balandat, Maximilian and Katti, Sanjeevkumar and Kazerouni, Abbas and Leach, Jonathan and McKillop, Mark and Zhang, Ying}, booktitle={Optical Fiber Communication Conference}, pages={F3B--1}, year={2021}, organization={Optical Society of America} }

SiP-ML: High-Bandwidth Optical Network Interconnects for Machine Learning Training
M. Khani, M. Ghobadi, M. Alizadeh, Z. Zhu, M. Glick, K. Bergman, A. Vahdat, B. Klenk, E. Ebrahimi
Paper | Slides | BibTeX | Code rostam
@inproceedings{khani2021sip, title={SiP-ML: high-bandwidth optical network interconnects for machine learning training}, author={Khani, Mehrdad and Ghobadi, Manya and Alizadeh, Mohammad and Zhu, Ziyi and Glick, Madeleine and Bergman, Keren and Vahdat, Amin and Klenk, Benjamin and Ebrahimi, Eiman}, booktitle={Proceedings of the 2021 ACM SIGCOMM 2021 Conference}, pages={657--675}, year={2021} }

OptFlow: A Flow-based Abstraction for Programmable Topologies
K. Foerster, L. Luo, M. Ghobadi
Paper | BibTeX
@inproceedings{foerster2020optflow, title={Optflow: A flow-based abstraction for programmable topologies}, author={Foerster, Klaus-Tycho and Luo, Long and Ghobadi, Manya}, booktitle={Proceedings of the Symposium on SDN Research}, pages={96--102}, year={2020} }

Bandwidth Steering for HPC using Silicon Nanophotonics
G. Michelogiannakis, Y. Shen, M. Y. Teh, X. Meng, B. Aivazi, T. Groves, J. Shalf, M. Glick, M. Ghobadi, L. Dennison, K. Bergman
ACM/IEEE Supercomputing Conference 2019
Paper | BibTeX
@inproceedings{michelogiannakis2019bandwidth, title={Bandwidth steering in HPC using silicon nanophotonics}, author={Michelogiannakis, George and Shen, Yiwen and Teh, Min Yee and Meng, Xiang and Aivazi, Benjamin and Groves, Taylor and Shalf, John and Glick, Madeleine and Ghobadi, Manya and Dennison, Larry and others}, booktitle={Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis}, pages={1--25}, year={2019} }

RADWAN: Rate Adaptive Wide Area Network
R. Singh, M. Ghobadi, K. Foerster, M. Filer, P. Gill
Paper | Slides | BibTeX
@inproceedings{singh2018radwan, title={RADWAN: rate adaptive wide area network}, author={Singh, Rachee and Ghobadi, Manya and Foerster, Klaus-Tycho and Filer, Mark and Gill, Phillipa}, booktitle={Proceedings of the 2018 Conference of the ACM Special Interest Group on Data Communication}, pages={547--560}, year={2018} }

Characterizing the Algorithmic Complexity of Reconfigurable Data Center Architectures
K. Foerster, M. Ghobadi, S. Schmid
Paper | BibTeX
@inproceedings{foerster2018characterizing, title={Characterizing the algorithmic complexity of reconfigurable data center architectures}, author={Foerster, Klaus-Tycho and Ghobadi, Manya and Schmid, Stefan}, booktitle={Proceedings of the 2018 Symposium on Architectures for Networking and Communications Systems}, pages={89--96}, year={2018} }

PINE: An Energy Efficient Flexibly Interconnected Photonic Data Center Architecture for Extreme Scalability
K. Bergman, J. Shalf, G. Michelogiannakis, S. Rumley, L. Dennison, M. Ghobadi
IEEE Optical Interconnects 2018
Paper | BibTeX
@inproceedings{bergman2018pine, title={PINE: An energy efficient flexibly interconnected photonic data center architecture for extreme scalability}, author={Bergman, Keren and Shalf, John and Michelogiannakis, George and Rumley, Sebastien and Dennison, Larry and Ghobadi, Monia}, booktitle={2018 IEEE Optical Interconnects Conference (OI)}, pages={25--26}, year={2018}, organization={IEEE} }

Run, Walk, Crawl: Towards Dynamic Link Capacities
R. Singh, M. Ghobadi, K. Foerster, M. Filer, P. Gill
ACM HotNets 2017
Paper | HotNets dialogue | Press | BibTeX
@inproceedings{singh2017run, title={Run, walk, crawl: Towards dynamic link capacities}, author={Singh, Rachee and Ghobadi, Monia and Foerster, Klaus-Tycho and Filer, Mark and Gill, Phillipa}, booktitle={Proceedings of the 16th ACM Workshop on Hot Topics in Networks}, pages={143--149}, year={2017} }

ProjecToR: Agile Reconfigurable Data Center Interconnect
M. Ghobadi, R. Mahajan, A. Phanishayee, N. Devanur, J. Kulkarni, G. Ranade, P. Blanche, H. Rastegarfar, M. Glick, D. Kilper
Paper | Slides (.pdf) | Slides (.pptx) | Disco Ball tech. report | BibTeX
@inproceedings{ghobadi2016projector, title={Projector: Agile reconfigurable data center interconnect}, author={Ghobadi, Monia and Mahajan, Ratul and Phanishayee, Amar and Devanur, Nikhil and Kulkarni, Janardhan and Ranade, Gireeja and Blanche, Pierre-Alexandre and Rastegarfar, Houman and Glick, Madeleine and Kilper, Daniel}, booktitle={Proceedings of the 2016 ACM SIGCOMM Conference}, pages={216--229}, year={2016} }

Evaluation of Elastic Modulation Gains in Microsoft's Optical Backbone in North America
M. Ghobadi, J. Gaudette, R. Mahajan, A. Phanishayee, B. Klinkers, D. Kilper
OFC 2016
Paper | Slides | BibTeX
@inproceedings{ghobadi2016evaluation, title={Evaluation of elastic modulation gains in microsoft's optical backbone in North America}, author={Ghobadi, Monia and Gaudette, Jamie and Mahajan, Ratul and Phanishayee, Amar and Klinkers, Buddy and Kilper, Daniel}, booktitle={2016 Optical Fiber Communications Conference and Exhibition (OFC)}, pages={1--3}, year={2016}, organization={IEEE} }
Press Coverage

MIT Core Team


Manya Ghobadi

Assistant Professor

Zhizhen Zhong

Postdoc Researcher

Moein Khazraee

Postdoc Researcher

Weiyang (Frank) Wang

PhD Student