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An SDN-Based Framework for Routing Multi-Streams Transport Traffic Over Multipath Networks

机译：基于SDN的多路径网络上路由多流传输流量的框架

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Multi-stream transport protocols, such as SCTP and QUIC, tackle challenges such as Head of Line (HoL) faced by TCP. They are getting more and more deployed and currently carry more than 7% of the global Internet traffic. However, since these protocols have limited control over the actual routes the streams will take in the network, the streams are generally forwarded through a single and same path, even though there are generally multiple paths available in the network. Consequently, the traffic streams do not fully benefit from the available bandwidth and performance improvement remains limited. Software Defined Networks (SDN) separate control planes and data planes. It offers a complete view of the network to applications and enables network programmability through flexible rules. These rules may be used to ensure that the different streams generated by multi-stream transport protocols follow multiple paths in the network. In this paper, we propose an SDN-based framework for multi-stream transport protocols in multipath networks. The proposed framework provides an interface for applications to specify multi-stream rules. Based on these rules, the framework uses the services offered by the SDN Controller to ensure that the multiple streams go over multiple paths in the network. Experiments performed show that our proposal improves the QoS offered to the end users.
机译：诸如SCTP和QUIC之类的多流传输协议可以解决诸如TCP所面临的线头（HoL）之类的挑战。它们正在得到越来越多的部署，目前承载着全球7％以上的Internet流量。但是，由于这些协议对流将在网络中采用的实际路由具有有限的控制，因此即使网络中通常存在多个可用路径，流也通常通过一条相同的路径转发。因此，业务流无法完全从可用带宽中受益，并且性能提升仍然受到限制。软件定义网络（SDN）将控制平面和数据平面分开。它为应用程序提供了完整的网络视图，并通过灵活的规则实现了网络可编程性。这些规则可用于确保由多流传输协议生成的不同流遵循网络中的多个路径。在本文中，我们为多路径网络中的多流传输协议提出了一个基于SDN的框架。提出的框架为应用程序提供了一个接口，以指定多流规则。基于这些规则，框架使用SDN控制器提供的服务来确保多个流通过网络中的多个路径。进行的实验表明，我们的建议改善了提供给最终用户的QoS。

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