Proceedings of the 2003 conference on Applications, technologies, architectures, and protocols for computer communications
A Feasibility Study for Power Management in LAN Switches
ICNP '04 Proceedings of the 12th IEEE International Conference on Network Protocols
Reducing the Energy Consumption of Ethernet with Adaptive Link Rate (ALR)
IEEE Transactions on Computers
Reducing network energy consumption via sleeping and rate-adaptation
NSDI'08 Proceedings of the 5th USENIX Symposium on Networked Systems Design and Implementation
Energy-aware server provisioning and load dispatching for connection-intensive internet services
NSDI'08 Proceedings of the 5th USENIX Symposium on Networked Systems Design and Implementation
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
A Power Benchmarking Framework for Network Devices
NETWORKING '09 Proceedings of the 8th International IFIP-TC 6 Networking Conference
Energy aware network operations
INFOCOM'09 Proceedings of the 28th IEEE international conference on Computer Communications Workshops
ElasticTree: saving energy in data center networks
NSDI'10 Proceedings of the 7th USENIX conference on Networked systems design and implementation
Energy conservation in multi-tenant networks through power virtualization
HotPower'10 Proceedings of the 2010 international conference on Power aware computing and systems
VMFlow: leveraging VM mobility to reduce network power costs in data centers
NETWORKING'11 Proceedings of the 10th international IFIP TC 6 conference on Networking - Volume Part I
Using OMNeT++ for energy optimization simulations in mobile core networks
Proceedings of the 5th International ICST Conference on Simulation Tools and Techniques
Merging traffic to save energy in the enterprise
Proceedings of the 2nd International Conference on Energy-Efficient Computing and Networking
An economic model for green cloud
Proceedings of the 10th International Workshop on Middleware for Grids, Clouds and e-Science
Greening data center networks with throughput-guaranteed power-aware routing
Computer Networks: The International Journal of Computer and Telecommunications Networking
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Energy efficiency is becoming increasingly important in the operation of networking infrastructure, especially in enterprise and data center networks. While strategies for lowering the energy consumption of network devices have been proposed, what is lacking is a comprehensive measurement study conducted across a large network (such as an enterprise), that monitors power usage as a function of traffic flowing through the network. We present a large power profile study that we conducted in an enterprise network, comprising of 90 live switches from various vendors. We first describe Urja, the system that we built, that collects required configurations from a wide variety of deployed switches and uses them to accurately predict the power consumed by individual devices and the network as a whole. Urja is vendor neutral, and relies on standard SNMP MIBs to gather the required configuration and traffic information. Further, based on available knobs in current devices, the analysis engine in Urja lists various configuration and rewiring changes that can be made to the devices in order to make the network more energy proportional. Urja has been deployed in an enterprise sub-network for about 4 months; through comprehensive analysis of the data collected over this period, we present various changes (in increasing order of cost and complexity) that network administrators can perform; in this segment of an enterprise network, we can save over 30% of the network energy through simple configuration and rewiring changes, and without any performance impact.