Date Added: Sep 2013
Internet infrastructure energy consumption is a major topic of research nowadays due to environmental and economical concerns. Therefore, it is increasingly important new solutions that decrease energy consumption, but without impairing network throughput and costs. Hence, it is important to survey and categorize current techniques, not only applicable to IP networks, but that can also be potentially useful for the future Internet architectures, such as Publish-Subscribe architectures. Therefore, to achieve such goals this paper presents a survey on energy efficient architectures and functional mechanisms (such as energy adaptive routing) for the current and future Internet.