Current networks are designed for peak loads leading to low utilization of power resources. In order to solve this problem. a heuristic energy-saving virtual network embedding algorithm based on the Katz centrality (Katz-VNE) is proposed. For solving an energy-saving virtual network embedding problem. https://www.bekindtopets.com/hot-sale-Osborne-RN3-Big-Wheel-Nursery-Hog-Feeder-best-save/