DocumentCode :
266180
Title :
Augmenting data center networks with a fast reconfigurable optical multistage interconnect
Author :
Zhiyang Guo ; Yuanyuan Yang
Author_Institution :
Dept. of Electr. & Comput. Eng., Stony Brook Univ., Stony Brook, NY, USA
fYear :
2014
fDate :
8-12 Dec. 2014
Firstpage :
2198
Lastpage :
2204
Abstract :
The high bandwidth and power efficiency of optical circuit switching (OCS) have motivated the recent development of hybrid packet/circuit switched (Hypac) data center networks (DCNs). However, current Hypac DCNs use a large MEMS optical switch for OCS communication, which offers limited scalability and expandability. In addition, the slow switching speed of MEMS switches imposes considerable network reconfiguration overhead, which results in degraded network performance. In this paper, we first analyze the fundamental challenges in current MEMS-based Hypac DCNs, and show that fast optical network reconfiguration is the key to effectively utilize OCS in data center communication. We then present a Fast Reconfigurable Baseline Optical Network (FARBON), which, by leveraging the ultra-fast optical switching modules and unique topological properties of the baseline multistage network, allows for rapid network configuration. We also design the control plane and a practical low-jitter traffic scheduling algorithm for FARBON. We demonstrate that FARBON has many desirable features, such as good scalability, low traffic jitter, predictable network performance and tolerance to inaccurate traffic information. The performance of FARBON is evaluated via extensive simulations, and the results show that FARBON significantly outperforms MEMS optical switches in terms of average packet delay and jitter, as well as dealing with correlated traffic, thus is a promising candidate for exploiting the potential of OCS in Hypac DCNs.
Keywords :
circuit switching; computer centres; jitter; microswitches; multistage interconnection networks; optical fibre networks; optical switches; software radio; telecommunication computing; telecommunication network topology; telecommunication scheduling; telecommunication traffic; FARBON; Hypac hybrid packet-circuit; MEMS optical switches; MEMS-based Hypac DCN; OCS; average packet delay; baseline multistage network; data center communication; data center network; fast reconfigurable baseline optical network; fast reconfigurable optical multistage interconnect; hybrid packet-circuit switched data center networks; low-jitter traffic scheduling algorithm; network performance; network reconfiguration; optical circuit switching; optical network reconfiguration; switching speed; topological properties; Bandwidth; Microswitches; Optical fiber networks; Optical switches; Time division multiplexing; Data center networks; all-to-all; circuit switching; hybrid electronic/optical; jitter; multistage networks;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Global Communications Conference (GLOBECOM), 2014 IEEE
Conference_Location :
Austin, TX
Type :
conf
DOI :
10.1109/GLOCOM.2014.7037134
Filename :
7037134
Link To Document :
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