ADON: a scalable AWG-based topology for datacenter optical network

Wang, Kun; Zhao, Lijuan; Gu, Huaxi; Yu, Xiaoshan; Wu, Gang; Cai, Jinke

doi:10.1007/s11082-015-0136-z

Cited by 7 publications

(3 citation statements)

References 22 publications

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“…Similarly, to design presented in [5], authors in [6] demonstrated a design based on AWGRs in addition to TOR access switches. However, authors in [6] proposed a design with multiple uplink ports at the access layer to facilitate inter-rack communication through either AWGRs or TOR switches.…”

Section: Introductionmentioning

confidence: 95%

Mathematical Optimization Modelling for Fast-Switched and Delay Minimized Scheduling for Intra-Cell Communication in an AWGR-Based PON Data Center

Hammadi¹

2017

IJCNS

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As the internet traffic along with the processing power in data centers are exponentially growing, the need for the design of energy efficient with highly elastic networking infrastructure to support the different applications and cloud services that can be hosted in data centers have become a hot research area. A key departure from the norm is that conventional routers and switches in conventional data centers are replaced with high performance Passive Optical Networks (PONs) to take over the role of routing and traffic forwarding through efficient resource provisioning algorithms. In this paper, the different aspects of PONs in the design of energy efficient, high capacity, and highly elastic networking infrastructures to support the applications and services hosted by modern data centers are considered. In this work, a mathematical optimization model for energy-efficient and delay-minimized scheduling in AWGR based PON data center for PON cell fabric configuration will be presented. The performance of the proposed architecture in terms of efficient scheduling against average delay and power consumption for different traffic loads and patterns will be evaluated. Different scenarios of traffic; random and unbalanced with hotspots are examined to evaluate the average delay and power consumption with and without sleep mode. Results have shown that with sleep mode enabled, power savings for two evaluated objective functions have shown similar results when examining different traffic patterns. The power savings range between 8% and 55% during low and high load activities, respectively. However, minimization of delay model has shown improvement in reducing total average delay reaching up to 42% if compared with the model with objective of minimization of power consumption.

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Section: Introductionmentioning

confidence: 95%

Mathematical Optimization Modelling for Fast-Switched and Delay Minimized Scheduling for Intra-Cell Communication in an AWGR-Based PON Data Center

Hammadi¹

2017

IJCNS

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“…One of the main challenges of the aforementioned DCN architectures is their scalability. Consequently, several optical switching architectures have been proposed to support large size DCNs [7,22], [23][24][25]. However, a major challenge when scaling out the optical DCN is the limited port counts of FOSs.…”

Section: Introductionmentioning

confidence: 99%

HFOS$$_L$$: hyper scale fast optical switch-based data center network with L-level sub-network

et al. 2022

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“…Various PON technologies were used in data center networks while keeping the Top-of-the-Rack (ToR) electronic switches. The PON technologies in data center networks include Arrayed Waveguide Grating Routers (AWGRs), Orthogonal Frequency Division Multiplexing (OFDM) PON, and Wavelength Division Multiplexing (WDM) PON [22]- [25]. In [26], five novel PON-based data center architectures were proposed to offer high capacity for intra and inter rack interconnections at low cost, and high energy-efficiency in future Data Center Networks (DCNs).…”

Section: Introductionmentioning

confidence: 99%

Optimized Passive Optical Networks with Cascaded-AWGRs for Data Centers

Alharthi

Mohamed

Yosuf

et al. 2021

2021 IEEE Conference on Standards for Communications and Networking (CSCN)

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The use of Passive Optical Networks (PONs) in modern and future data centers can provide energy efficiency, high capacity, low cost, scalability, and elasticity. This paper introduces a passive optical network design with 2-tier cascaded Arrayed Waveguide Grating Routers (AWGRs) to connect groups of racks (i.e. cells) within a data center. This design employs a Software-Defined Networking (SDN) controller to manage the routing and assignment of the networking resource while introducing multiple paths between any two cells to improve routing, load balancing and resilience. We provide benchmarking results for the power consumption to compare the energy efficiency of this design to state-of-the-art data centers. The results indicate that the cascaded AWGRs architecture can achieve up to 43% saving in the networking power consumption compared to a Fat-Tree data center architecture.

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ADON: a scalable AWG-based topology for datacenter optical network

Cited by 7 publications

References 22 publications

Mathematical Optimization Modelling for Fast-Switched and Delay Minimized Scheduling for Intra-Cell Communication in an AWGR-Based PON Data Center

Mathematical Optimization Modelling for Fast-Switched and Delay Minimized Scheduling for Intra-Cell Communication in an AWGR-Based PON Data Center

HFOS$$_L$$: hyper scale fast optical switch-based data center network with L-level sub-network

Optimized Passive Optical Networks with Cascaded-AWGRs for Data Centers

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