Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect

Kostas Christodoulopoulos; Konstantinos Kontodimas; Apostolos Siokis; Konstantinos Yiannopoulos; E. Varvarigos

doi:10.1109/ICECS.2016.7841209

Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect

Kostas Christodoulopoulos, Konstantinos Kontodimas, Apostolos Siokis, Konstantinos Yiannopoulos, E. Varvarigos

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research

Abstract

The NEPHELE datacenter network is divided into pods/clusters of racks and relies on hybrid electro-optical top-of rack switches that access an all-optical network consisting of WDM rings. To enable dynamic and efficient sharing of the optical resources and a collision-free network operation, the NEPHELE network is designed to operate in a slotted manner with a software-defined-network (SDN) based control plane. We describe the NEPHELE resource allocation problem, consider the wavelength conflicts on the shared WDM rings, translate them into resource allocation constraints and investigate the effect of these constraints on network performance. To do so, we define the worst-case traffic pattern and perform simulations to evaluate performance for the average traffic. Finally, we propose a variation to the NEPHELE architecture that reduces the effects of these wavelength conflict constraints on performance.

Original language	English
Title of host publication	2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS 2016)
Editors	Sandro Carrara, Patricia Desgreys, Domenico Zito
Place of Publication	Piscataway NJ USA
Publisher	IEEE, Institute of Electrical and Electronics Engineers
Pages	368-371
Number of pages	4
ISBN (Electronic)	9781509061136, 9781509061129
ISBN (Print)	9781509061143
DOIs	https://doi.org/10.1109/ICECS.2016.7841209
Publication status	Published - 2016
Externally published	Yes
Event	IEEE International Conference on Electronics, Circuits and Systems 2016 - Monte Carlo, Monaco Duration: 11 Dec 2016 → 14 Dec 2016 Conference number: 23rd

Conference

Conference	IEEE International Conference on Electronics, Circuits and Systems 2016
Abbreviated title	ICECS 2016
Country/Territory	Monaco
City	Monte Carlo
Period	11/12/16 → 14/12/16

Keywords

resource allocation
rings
scheduling
slotted operation
time division multiplexing (TDM)
wavelenght collsions
wavelength division multiplexing (WDM)

Access to Document

10.1109/ICECS.2016.7841209

Cite this

Christodoulopoulos, K., Kontodimas, K., Siokis, A., Yiannopoulos, K., & Varvarigos, E. (2016). Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect. In S. Carrara, P. Desgreys, & D. Zito (Eds.), 2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS 2016) (pp. 368-371). IEEE, Institute of Electrical and Electronics Engineers. https://doi.org/10.1109/ICECS.2016.7841209

Christodoulopoulos, Kostas ; Kontodimas, Konstantinos ; Siokis, Apostolos et al. / Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect. 2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS 2016). editor / Sandro Carrara ; Patricia Desgreys ; Domenico Zito. Piscataway NJ USA : IEEE, Institute of Electrical and Electronics Engineers, 2016. pp. 368-371

@inproceedings{c4acfb0eeb7b415ea594f4c0c9a95a3d,

title = "Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect",

abstract = "The NEPHELE datacenter network is divided into pods/clusters of racks and relies on hybrid electro-optical top-of rack switches that access an all-optical network consisting of WDM rings. To enable dynamic and efficient sharing of the optical resources and a collision-free network operation, the NEPHELE network is designed to operate in a slotted manner with a software-defined-network (SDN) based control plane. We describe the NEPHELE resource allocation problem, consider the wavelength conflicts on the shared WDM rings, translate them into resource allocation constraints and investigate the effect of these constraints on network performance. To do so, we define the worst-case traffic pattern and perform simulations to evaluate performance for the average traffic. Finally, we propose a variation to the NEPHELE architecture that reduces the effects of these wavelength conflict constraints on performance.",

keywords = "resource allocation, rings, scheduling, slotted operation, time division multiplexing (TDM), wavelenght collsions, wavelength division multiplexing (WDM)",

author = "Kostas Christodoulopoulos and Konstantinos Kontodimas and Apostolos Siokis and Konstantinos Yiannopoulos and E. Varvarigos",

year = "2016",

doi = "10.1109/ICECS.2016.7841209",

language = "English",

isbn = "9781509061143",

pages = "368--371",

editor = "Sandro Carrara and Patricia Desgreys and Domenico Zito",

booktitle = "2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS 2016)",

publisher = "IEEE, Institute of Electrical and Electronics Engineers",

address = "United States of America",

note = "IEEE International Conference on Electronics, Circuits and Systems 2016, ICECS 2016 ; Conference date: 11-12-2016 Through 14-12-2016",

}

Christodoulopoulos, K, Kontodimas, K, Siokis, A, Yiannopoulos, K & Varvarigos, E 2016, Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect. in S Carrara, P Desgreys & D Zito (eds), 2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS 2016). IEEE, Institute of Electrical and Electronics Engineers, Piscataway NJ USA, pp. 368-371, IEEE International Conference on Electronics, Circuits and Systems 2016, Monte Carlo, Monaco, 11/12/16. https://doi.org/10.1109/ICECS.2016.7841209

Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect. / Christodoulopoulos, Kostas; Kontodimas, Konstantinos; Siokis, Apostolos et al.
2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS 2016). ed. / Sandro Carrara; Patricia Desgreys; Domenico Zito. Piscataway NJ USA: IEEE, Institute of Electrical and Electronics Engineers, 2016. p. 368-371.

Research output: Chapter in Book/Report/Conference proceeding › Conference Paper › Research

TY - GEN

T1 - Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect

AU - Christodoulopoulos, Kostas

AU - Kontodimas, Konstantinos

AU - Siokis, Apostolos

AU - Yiannopoulos, Konstantinos

AU - Varvarigos, E.

N1 - Conference code: 23rd

PY - 2016

Y1 - 2016

N2 - The NEPHELE datacenter network is divided into pods/clusters of racks and relies on hybrid electro-optical top-of rack switches that access an all-optical network consisting of WDM rings. To enable dynamic and efficient sharing of the optical resources and a collision-free network operation, the NEPHELE network is designed to operate in a slotted manner with a software-defined-network (SDN) based control plane. We describe the NEPHELE resource allocation problem, consider the wavelength conflicts on the shared WDM rings, translate them into resource allocation constraints and investigate the effect of these constraints on network performance. To do so, we define the worst-case traffic pattern and perform simulations to evaluate performance for the average traffic. Finally, we propose a variation to the NEPHELE architecture that reduces the effects of these wavelength conflict constraints on performance.

AB - The NEPHELE datacenter network is divided into pods/clusters of racks and relies on hybrid electro-optical top-of rack switches that access an all-optical network consisting of WDM rings. To enable dynamic and efficient sharing of the optical resources and a collision-free network operation, the NEPHELE network is designed to operate in a slotted manner with a software-defined-network (SDN) based control plane. We describe the NEPHELE resource allocation problem, consider the wavelength conflicts on the shared WDM rings, translate them into resource allocation constraints and investigate the effect of these constraints on network performance. To do so, we define the worst-case traffic pattern and perform simulations to evaluate performance for the average traffic. Finally, we propose a variation to the NEPHELE architecture that reduces the effects of these wavelength conflict constraints on performance.

KW - resource allocation

KW - rings

KW - scheduling

KW - slotted operation

KW - time division multiplexing (TDM)

KW - wavelenght collsions

KW - wavelength division multiplexing (WDM)

UR - http://www.scopus.com/inward/record.url?scp=85015347161&partnerID=8YFLogxK

U2 - 10.1109/ICECS.2016.7841209

DO - 10.1109/ICECS.2016.7841209

M3 - Conference Paper

AN - SCOPUS:85015347161

SN - 9781509061143

SP - 368

EP - 371

BT - 2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS 2016)

A2 - Carrara, Sandro

A2 - Desgreys, Patricia

A2 - Zito, Domenico

PB - IEEE, Institute of Electrical and Electronics Engineers

CY - Piscataway NJ USA

T2 - IEEE International Conference on Electronics, Circuits and Systems 2016

Y2 - 11 December 2016 through 14 December 2016

ER -

Christodoulopoulos K, Kontodimas K, Siokis A, Yiannopoulos K, Varvarigos E. Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect. In Carrara S, Desgreys P, Zito D, editors, 2016 IEEE International Conference on Electronics, Circuits and Systems (ICECS 2016). Piscataway NJ USA: IEEE, Institute of Electrical and Electronics Engineers. 2016. p. 368-371 doi: 10.1109/ICECS.2016.7841209

Collisions free scheduling in the NEPHELE hybrid electrical/optical datacenter interconnect

Abstract

Conference

Keywords

Access to Document

Other files and links

Cite this