The single controller setup, in software-defined data center, is purposed to support dynamic load and scalability of switches. As such, multiple controller implementations become a promising approach to handle huge volumes of traffic. Co-locating the controllers along with switches becomes mandatory. In this article, we propose a controller placement model using independent dominating set, which identifies suitable positioning of controllers and assures minimum response time between controllers and switches. This creates an efficient switch to controller mapping with less latency. Since the control traffic influences the performance of software-defined network intensely. Moreover, with link energy as a metric, an energy aware routing mechanism, through the novel path ability component, is been proposed. It maintains the levels of path energy through which we route the traffic. Sustaining a unique module to maintain path energy metric increases the routing efficiency of the controller. Based on the dynamic update of path energy status, controllers periodically do the operations like switching off/on links and rerouting of packets. Traffic rerouting prevents congestion and avoids controller overhead during enormous traffic arrival. This adaptation ensures that our routing procedure utilizes less link energy during burst traffic compared to other existing approaches. The objective of this research work is to develop a controller placement model with an efficient routing strategy. It is capable of accomplishing low response time and prevents link energy depletion. The simulation outcomes indicate that the proposed algorithm achieves 70 to 227 watts less energy compared to the existing mechanisms with 52% increased throughput.

在软件定义的数据中心中的单控制器设置旨在支持交换机的动态负载和可伸缩性。这样，多个控制器的实现成为处理大量流量的一种有前途的方法。必须将控制器和开关一起放置在同一位置。在本文中，我们提出了一种使用独立控制集的控制器放置模型，该模型可确定控制器的合适位置并确保控制器和开关之间的响应时间最短。这样可以以更少的延迟创建到控制器映射的高效切换。由于控制流量会严重影响软件定义网络的性能。此外，以链路能量为度量标准，提出了一种通过新颖的路径能力组件的能量感知路由机制。它保持了我们路由流量所经过的路径能量的水平。维持一个独特的模块来维持路径能量度量，可以提高控制器的路由效率。基于路径能量状态的动态更新，控制器会定期执行诸如关闭/打开链接和重新路由数据包之类的操作。流量重新路由可防止拥塞，并避免在巨大流量到达期间的控制器开销。与其他现有方法相比，这种调整可确保我们的路由过程在突发流量期间利用较少的链路能量。这项研究工作的目的是开发一种具有有效路由策略的控制器放置模型。它能够实现较低的响应时间并防止链路能量耗尽。