Date Added: Jul 2012
Data center consumes increasing amount of power nowadays, together with expanding number of data centers and upgrading data center scale, its power consumption becomes a knotty issue. While main efforts of this research focus on server and storage power reduction, network devices as part of the key components of data centers, also contribute to the overall power consumption as data centers expand. In this paper, the authors address this problem with two perspectives. First, in a macro level, they attempt to reduce redundant energy usage incurred by network redundancies for load balancing. Second, in the micro level, they design algorithm to limit port rate in order to reduce unnecessary power consumption.