Context:

Supervision:

Artur Minakhmetov

Email: artur.minakhmetov@telecom-paristech.fr

Cédric Ware

Email: cedric.ware@telecom-paristech.fr

http://perso.telecom-paristech.fr/~ware/

The future of Internet depends on meeting ever-increasing capacity needs while curbing the energy consump- tion’s uncontrolled growth in data networks and reducing the end-to-end latency of mobile networks. Optical functionalities (OFs), such as wavelength conversion, all-optical regeneration and optical packet switching, have a tremendous potential to solve these challenges by reducing the required number of optical-to-electronic (O-E) conversions and leveraging the lower energy cost per bit of optical transmissions. Unfortunately, such OFs that ought to be “killer applications” have never gained any significant market share, because they don’t easily fit the conventional layered network model.

Our team is currently working on new ways to handle OFs[1, 2], notably Optical and Hybrid Opto- electronic Packet Switching (OPS, HOPS), which have been shown in simulation to boost the performance and energy efficiency of data center networks, especially when coupled with TCP congestion control algorithms (CCAs).

Problem statement:

The aim of this project is study the influence of different HOPS network topologies on the performance of a data center. Several types of topologies[3, 4] are seen as a possible option for OPS network, but were not fully studied and compared for HOPS networks.

The students will undertake simulations of the HOPS data center networks employing different topologies and then study the benefits of each one in terms of Network Throughput, Latency, Energy Consumption and other metrics. The simulations will be undertaken by the simulator developed (C++) in Telecom ParisTech.

References

1. A. Minakhmetov, C. Ware, and L. Iannone. “TCP Congestion Control in Datacenter Optical Packet Net- works on Hybrid Switches”. In: vol. 10. 7. OSA, July 2018, B71–B81. DOI: 10.1364/JOCN.10.000B71.URL: http://jocn.osa.org/abstract.cfm?URI=jocn-10-7-B71.
2. A. Minakhmetov, H. Chouman, L. Iannone, M. Lourdiane, and C. Ware. “Network-level strategies for best use of optical functionalities”. In: Int. Conference on Transparent Optical Networks (ICTON). Tu.B1.3. July 2018.
3. N. Benzaoui, Y. Pointurier, and S. Bigo. “Latency in a 2D torus burst optical slot switching data center”. In: 2017 Optical Fiber Communications Conference and Exhibition (OFC). Mar. 2017, pp. 1–3.
4. F. Yan, G. Guelbenzu, and N. Calabretta. “A novel scalable and low latency hybrid data center network architecture based on flow controlled fast optical switches”. In: Optical Fiber Communication Conference. Optical Society of America, 2018, W2A.23. DOI: 10.1364/OFC.2018.W2A.23. URL: http://www. osapublishing.org/abstract.cfm?URI=OFC-2018-W2A.23.