A survey on architectures and energy efficiency in Data Center Networks

Data Center Networks (DCNs) are attracting growing interest from both academia and industry to keep pace with the exponential growth in cloud computing and enterprise networks. Modern DCNs are facing two main challenges of scalability and cost-effectiveness. The architecture of a DCN directly impact...

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Bibliographic Details
Published inComputer communications Vol. 40; pp. 1 - 21
Main Authors Hammadi, Ali, Mhamdi, Lotfi
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier B.V 01.03.2014
Elsevier
Subjects
Applied sciences
Architecture
Computer science; control theory; systems
Computer systems and distributed systems. User interface
Data Center Networks (DCNs)
Energy efficiency
Exact sciences and technology
Information systems. Data bases
Memory organisation. Data processing
Renewable energy for DCNs
Software
Virtualization
Renewable energy for DCNs
Energy efficiency
Data Center Networks (DCNs)
Architecture
Virtualization
Energy consumption
Energy method
Cloud computing
Scalability
Digital enterprise
Data center
Topology
Distributed computing
Sustainable development
Energy savings
Computer center
Categorization
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Summary:Data Center Networks (DCNs) are attracting growing interest from both academia and industry to keep pace with the exponential growth in cloud computing and enterprise networks. Modern DCNs are facing two main challenges of scalability and cost-effectiveness. The architecture of a DCN directly impacts on its scalability, while its cost is largely driven by its power consumption. In this paper, we conduct a detailed survey of the most recent advances and research activities in DCNs, with a special focus on the architectural evolution of DCNs and their energy efficiency. The paper provides a qualitative categorization of existing DCN architectures into switch-centric and server-centric topologies as well as their design technologies. Energy efficiency in data centers is discussed in details with survey of existing techniques in energy savings, green data centers and renewable energy approaches. Finally, we outline potential future research directions in DCNs.
ISSN:0140-3664
1873-703X
DOI:10.1016/j.comcom.2013.11.005