Application-based QoS support with P4 and OpenFlow: A demonstration using Chameleon
Application-based QoS support with P4 and OpenFlow: A demonstration using Chameleon
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P4 和 OpenFlow 基于应用程序的 QoS 支持：使用 Chameleon 进行演示
DOI：
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发表时间：
2018
期刊：
影响因子：
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通讯作者：
K. Keahey
中科院分区：
文献类型：
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作者：
Divyashri Bhat;J. Anderson;Paul Ruth;M. Zink;K. Keahey
-虽然sd - wan现在被几个生产网络广泛部署，但它们在很大程度上仅限于基于网络协议栈的第4层（L4）的流量工程方法，这些方法可以提高整个网络的服务质量（QoS），而不必关注特定的应用程序。然而，诸如QUIC和HTTP/2等应用协议的出现需要对基于第5层（L5）的方法进行研究，以提高用户的体验质量（QoE）。在本演示中，我们利用灵活交换机的功能，这些功能结合了与协议无关的数据包处理，以便根据应用程序报头智能地路由流量。我们以自适应比特率（ABR）视频流为例，展示了这种方法不仅可以提供灵活的流量管理，还可以提高应用程序的QoE。我们的原型包括在研究测试平台Chameleon中的实际部署，以及最先进的编排和可视化工具Jupyter，我们将其与Chameleon集成，以便为SDN实验人员提供单一的有利位置。
—Although SD-WANs are now widely deployed by several production networks, they are largely restricted to traffic engineering approaches based on layer 4 (L4) of the network protocol stack that result in improved Quality-of-Service (QoS) of the network overall without necessarily focussing on a specific application. However, the emergence of application protocols such as QUIC and HTTP/2 needs an investigation of layer 5-based (L5) approaches in order to improve users’ Quality-of-Experience (QoE). In this demonstration, we leverage the capabilities of flexible switches that incorporate protocol-independent packet processing in order to intelligently route traffic based on application headers. We use Adaptive Bit Rate (ABR) video streaming as an example to show how such an approach can not only provide flexible traffic management but also improve application QoE. Our prototype consists of an actual deployment in a research testbed, Chameleon, and a state-of-the-art orchestration and visualization tool, Jupyter, that we integrate with Chameleon in order to provide a single vantage point for SDN experimenters.