Software-defined networking (SDN) is an emerging technology of efficiently controlling and managing computer networks, such as in data centres, wide-area networks, as well as in ubiquitous communication. In this study, the authors explore the idea of embedding the SDN components, represented by SDN controller and virtual switch, in end-hosts to improve network performance. In particular, the authors consider load balancing across multiple network interfaces on end-hosts with different link capacity scenarios. The authors have explored and implemented different SDN-based load-balancing approaches based on OpenFlow software switches, and have demonstrated the feasibility and the potential of this approach. The proposed system has been evaluated with MultiPath transmission control protocol (MPTCP). The proposed results demonstrated the potential of applying the SDN concepts on multi-homed devices resulting in an increase in achieved throughput of 55% compared to the legacy single network approach and 10% compared to the MPTCP.

中文翻译：

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通过SDN对多宿主最终主机进行网络流量控制

软件定义网络（SDN）是一种有效控制和管理计算机网络的新兴技术，例如在数据中心，广域网以及无处不在的通信中。在这项研究中，作者探索了将以SDN控制器和虚拟交换机为代表的SDN组件嵌入到最终主机中以提高网络性能的想法。特别是，作者考虑了具有不同链路容量方案的终端主机上多个网络接口之间的负载平衡。作者已经探索并实现了基于OpenFlow软件交换机的基于SDN的不同负载均衡方法，并证明了这种方法的可行性和潜力。所提出的系统已通过MultiPath传输控制协议（MPTCP）进行了评估。