NeTS: Medium: Green Net: Energy Management for Network Infrastructure

互联网作为人类社会不可或缺的通信系统，在能源消耗方面也占有一席之地。然而，底层网络基础设施缺乏有效的能源管理解决方案。能源消耗不仅在经济上和环境上造成成本，而且还成为系统性能的限制因素。当今的网络在设计上过度配置，在运行中负载平衡，以实现最大性能，导致路由器和链路即使在高度未利用的情况下也会消耗接近峰值的能量。该项目利用路由路径冗余和低链路利用率来设计智能路由方案，允许链路在网络流量负载低时休眠，并在负载高时唤醒它们以服务流量，从而在保持网络性能的同时降低能耗。为了实现这一目标，新的算法和协议的功率感知网络路由，流量工程，和拓扑结构的互联网服务提供商将设计和评估。高能效的网络基础设施将带来更环保的互联网，并使互联网服务提供商能够降低能耗，同时仍能提供所需水平的QoS。此外，互联网服务提供商将能够在能源有限的环境中部署网络基础设施，如灾后恢复和欠发达地区。该项目开发的工具和技术将为研究界提供网络能源管理研究的平台和方向。

The Internet as an indispensable communication system in our society has its share in energy consumption. The underlying network infrastructure, however, lacks effective energy management solutions. Not only does the energy consumption cost financially and environmentally, it also has becoming a limiting factor in system performance. Today's networks are aggressively over-provisioned in design and load-balanced in operation for maximum performance resulting in routers and links consuming close to peak energy even when highly underutilized. This project exploits routing path redundancy and low link utilization to design smart routing schemes that allow links to sleep when the network traffic load is low, and wake them up to serve the traffic when the load is high, thus reducing energy consumption while preserving network performance. To achieve this, novel algorithms and protocols for power-aware network routing, traffic engineering, and topology in Internet Service Providers will be designed and evaluated. An energy-efficient network infrastructure will lead to a greener Internet and enable ISPs to reduce energy consumptions while still providing QoS at desired levels. In addition, ISPs will be able to deploy network infrastructure in energy-constrained environments, such as post-disaster recovery and under-developed areas. The tools and techniques developed in this project will provide the research community with a platform and direction for research in network energy management.