Green computing is a central theme in many computer science areas, including computer networks. Dynamic solutions that can properly adjust network resources can prevent infrastructure over-provision and mitigate power consumption during low-demand periods. In this work, we propose DTM (Dynamic mechanism for Traffic Management), an energy-aware dynamic mechanism for traffic management, built upon the SDN paradigm. DTM continuously monitors the use of network links to concentrate traffic and disconnect idle equipment without degrading the offered quality of service. Our simulations show that the mechanism can save up to 46% of energy, on average, in the links’ capacities of homogeneous and heterogeneous scenarios. In scenarios with average to high traffic demands, the mean energy savings are 36.72% and 17.86%, respectively. Compared to a well-known existing mechanism, our approach is up to 7% better for medium-demand scenarios, and approximately 4% better for high-demand scenarios.

绿色计算是包括计算机网络在内的许多计算机科学领域的中心主题。可以适当调整网络资源的动态解决方案可以防止基础设施过度配置并在低需求期间降低功耗。在这项工作中，我们提出了 DTM（交通管理动态机制），一种基于 SDN 范式的能量感知动态交通管理机制。DTM 持续监控网络链路的使用，以在不降低所提供服务质量的情况下集中流量并断开空闲设备。我们的模拟表明，在同构和异构场景的链路容量中，该机制平均可以节省高达 46% 的能量。在平均到高流量需求的场景中，平均节能分别为 36.72% 和 17.86%。