基于时延和能耗的SD-DCN的路由优化算法

为了更好地实现数据中心网络的节能，基于交换机链路速率级的能耗特点，基于软件定义网络技术，提出一种Floyd-Warshall动态规划和局部重路由的节能服务质量路由优化算法.控制器在保障流的时延性能前提下，采用流在空间和时间上均衡传输的策略，依次为每个流计算传输路径和传输速率；在选路失败的情况下，尽量用较少的开销提高网络的接受率.仿真结果表明，该算法有效地降低了能耗，同时提高了网络流的接受率.

Deadline-Aware and Energy Efficient Routing Optimization Algorithm in SD-DCN

Based on link speed-scaling energy consumption strategy, Floyd-Warshall dynamic planning & rerouting parts of flows strategy based routing optimization algorithm was proposed. Considering the condition of flow deadline-aware and balanced transmission of flows strategy in space and time, controller in software defined data center network sorts the online incoming flows and chooses the route and calculates the transmission rate for every flow. In case of routing failure, the algorithm improves the acceptance rate of network traffic with less overhead. Simulations show that the algorithm effectively reduces energy consumption and improves the acceptance rate of network traffic.