Finding $k$ Cuts within Twice the Optimal
SIAM Journal on Computing
NOX: towards an operating system for networks
ACM SIGCOMM Computer Communication Review
Reducing network energy consumption via sleeping and rate-adaptation
NSDI'08 Proceedings of the 5th USENIX Symposium on Networked Systems Design and Implementation
The cost of a cloud: research problems in data center networks
ACM SIGCOMM Computer Communication Review
Skilled in the art of being idle: reducing energy waste in networked systems
NSDI'09 Proceedings of the 6th USENIX symposium on Networked systems design and implementation
Challenges Towards Elastic Power Management in Internet Data Centers
ICDCSW '09 Proceedings of the 2009 29th IEEE International Conference on Distributed Computing Systems Workshops
VL2: a scalable and flexible data center network
Proceedings of the ACM SIGCOMM 2009 conference on Data communication
Computer Networks: The International Journal of Computer and Telecommunications Networking
Understanding data center traffic characteristics
ACM SIGCOMM Computer Communication Review
Paper: Robust taboo search for the quadratic assignment problem
Parallel Computing
Reducing power consumption in backbone networks
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Improving the scalability of data center networks with traffic-aware virtual machine placement
INFOCOM'10 Proceedings of the 29th conference on Information communications
Energy-aware routing in data center network
Proceedings of the first ACM SIGCOMM workshop on Green networking
ElasticTree: saving energy in data center networks
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
Hedera: dynamic flow scheduling for data center networks
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
Scafida: a scale-free network inspired data center architecture
ACM SIGCOMM Computer Communication Review
OpenNebula: A Cloud Management Tool
IEEE Internet Computing
Optimal configuration of Energy-Efficient Ethernet
Computer Networks: The International Journal of Computer and Telecommunications Networking
Multi-granularity and robust grooming in power- and port-cost-efficient IP over WDM networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Network pruning for energy saving in the Internet
Computer Networks: The International Journal of Computer and Telecommunications Networking
A Traffic-Aware Virtual Machine Placement Method for Cloud Data Centers
UCC '13 Proceedings of the 2013 IEEE/ACM 6th International Conference on Utility and Cloud Computing
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In recent years, the power costs of cloud data centers have become a practical concern and have attracted significant attention from both industry and academia. Most of the early works on data center energy efficiency have focused on the biggest power consumers (i.e., computer servers and cooling systems), yet without taking the networking part into consideration. However, recent studies have revealed that the network elements consume 10-20% of the total power in the data center, which poses a great challenge to effectively reducing network power cost without adversely affecting overall network performance. Based on the analysis on topology characteristics and traffic patterns of data centers, this paper presents a novel approach, called VMPlanner, for network power reduction in the virtualization-based data centers. The basic idea of VMPlanner is to optimize both virtual machine placement and traffic flow routing so as to turn off as many unneeded network elements as possible for power saving. We formulate the optimization problem, analyze its hardness, and solve it by designing VMPlanner as a stepwise optimization approach with three approximation algorithms. VMPlanner is implemented and evaluated in a simulated environment with traffic traces collected from a data center test-bed, and the experiment results illustrate the efficacy and efficiency of this approach.