Abstract

Hybrid switching combines the strengths of electronic packet switching and high-speed optical circuit switching and is thus widely believed to be a cost-effective solution for current and future data center networks (DCNs). In designing a hybrid switching DCN, it is essential to know how many resources should be devoted to optical circuit switching and electronic packet switching so the performance requirements in both planes can be satisfied, and, at the same time, objectives such as minimizing the overall system building cost or the power consumption can be realized. In this paper, we introduce BLOC, the Blocking LOss Curve, as a tool to characterize hybrid switching DCNs. With BLOC, the three interacting components in hybrid switching systems—resource allocation, traffic partitioning, and system performance—can be naturally integrated and studied together. We show how BLOC can be used to obtain feasible resource allocation/traffic partition combinations. We also show how system parameters, such as flow arrival characteristics, may affect resource allocation and system costs. Our study reveals that the total amount of resource required to satisfy 95th percentile traffic can be as low as 60% of that required for 99.9th percentile traffic.

© 2017 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
BLOC: A Generic Resource Allocation Framework for Hybrid Packet/Circuit-Switched Networks

Zhangxiao Feng, Weiqiang Sun, and Weisheng Hu
J. Opt. Commun. Netw. 8(9) 689-700 (2016)

Efficient Bandwidth Allocation in the NEPHELE Optical/Electrical Datacenter Interconnect

K. Christodoulopoulos, K. Kontodimas, A. Siokis, K. Yiannopoulos, and E. Varvarigos
J. Opt. Commun. Netw. 9(12) 1145-1160 (2017)

POTORI: A Passive Optical Top-of-Rack Interconnect Architecture for Data Centers

Yuxin Cheng, Matteo Fiorani, Rui Lin, Lena Wosinska, and Jiajia Chen
J. Opt. Commun. Netw. 9(5) 401-411 (2017)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (3)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (11)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription