UCL logo

UCL Discovery

UCL home » Library Services » Electronic resources » UCL Discovery

Parallel Distributed Schedulers for Scalable Photonic Integrated Packet Switching

Andreades, P; Zervas, G; (2019) Parallel Distributed Schedulers for Scalable Photonic Integrated Packet Switching. In: Proceedings of IEEE Photonics in Switching and Computing 2018. IEEE: Limassol, Cyprus. (In press). Green open access

[img]
Preview
Text
Parallel Distributed Schedulers for Scalable Photonic Integrated Packet Switching_psc18.pdf - ["content_typename_Accepted version" not defined]

Download (591kB) | Preview

Abstract

As data centre traffic dynamics are changing, optical networking is becoming increasingly important for lowlatency, high bandwidth intra-data centre communication. Nanosecond-reconfigurable, scalable photonic switch fabrics and advances in photonic integration are key enablers for optical packet switching. However, the control plane and in particular the switch scheduler is believed to be a critical factor on packet latency and scalability. To that end, we report a low-latency scheduler for Clos-network switch fabrics based on a fixed path assignment scheme and parallel and distributed path arbitration. Cycle-accurate network emulation results show nanosecond average latency at input port loads up to 60% of capacity for a 256x256 switch size. In comparison to previous work, the scheduler can now control a switch 8 times the size at double the input port saturation load for the same average latency. Scaling the switch from 16 to 256 ports shows only a small drop in saturation load from 70% to 60%. Also fairness on a per flow basis is demonstrated.

Type: Proceedings paper
Title: Parallel Distributed Schedulers for Scalable Photonic Integrated Packet Switching
Event: IEEE Photonics in Switching and Computing
Dates: 19 September 2018 - 21 September 2018
Open access status: An open access version is available from UCL Discovery
Publisher version: https://ieeexplore.ieee.org/Xplore/home.jsp
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: switch scheduling, Clos-network switch, optical packet switching
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng
URI: http://discovery.ucl.ac.uk/id/eprint/10069636
Downloads since deposit
21Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item