The energy consumption of network devices is a significant part of the network's energy costs. Recently, Software-Defined Networking (SDN) has been suggested as a suitable and stable solution to decrease energy consumption. The main concern is how to manage resources for optimum energy consumption in SDN. Hence, this paper proposes a binary linear programming model. This model manages (on or off devices) switches, controllers, and SDN links based on the number of flows at the network edge, the processing capability of the controllers, the distance between switches and controllers, and the traffic. Therefore, with this model, the lowest energy consumption, and the lowest delay of control packets is achieved. The results show that this model, on average, has saved 40% of energy consumption, and it has also had up to 80% decrement when there is less network traffic. In addition, this model has decreased 68% of the delay of controlling packets with 70% decrement in less traffic.

网络设备的能耗是网络能耗的重要组成部分。最近，已提出软件定义网络（SDN）作为降低能耗的合适且稳定的解决方案。主要关注的是如何在SDN中管理资源以实现最佳能耗。因此，本文提出了一种二进制线性规划模型。该模型基于网络边缘的流量数量，控制器的处理能力，交换机和控制器之间的距离以及流量来管理（设备上或设备上的）交换机，控制器和SDN链接。因此，使用该模型，可以实现最低的能耗和最低的控制包延迟。结果表明，该模型平均节省了40％的能耗，当网络流量较少时，它的减量也高达80％。另外，该模型减少了控制数据包延迟的68％，流量减少了70％。