A Software defined Cloud-Gateway automation system using OpenFlow

2013 IEEE 2nd International Conference on Cloud Networking (CloudNet) Pub Date : 2013-11-01 DOI:10.1109/CloudNet.2013.6710582

S. Natarajan, A. Ramaiah, Mayan Mathen

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引用次数: 18

Abstract

The notion of programming the forwarding device using an open protocol is a key feature of Software-defined Networks (SDN). This improves network visibility and control thereby reducing vendor dependency. OpenFlow protocol provides a standardized approach to realize these goals of SDN. In this paper, we illustrate our progress with a Software-defined Cloud-Gateway automation system using OpenFlow. In addition, based on our deployment experience, we highlight two technical challenges when using OpenFlow. First, with the standardization being an evolving effort, we highlight some of the programming challenges and missing features within the OpenFlow protocol. Secondly, existing OpenFlow-based network stack lacks some architectural components that reduces the level of flexibility we achieve when programming the network. Most SDN controllers expose limited abstractions to build network applications thereby primarily functioning as an OpenFlow driver. This imposes an application programmer to work with several OpenFlow primitives. To address this problem, we elaborate our current work in extending the SDN stack to improve our overall network programmability experience.

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一个使用OpenFlow的软件定义云网关自动化系统

使用开放协议对转发设备进行编程的概念是软件定义网络(SDN)的一个关键特征。这提高了网络可见性和控制，从而减少了对供应商的依赖。OpenFlow协议为实现SDN的这些目标提供了一种标准化的方法。在本文中，我们通过使用OpenFlow的软件定义云网关自动化系统说明了我们的进展。此外，根据我们的部署经验，我们强调了使用OpenFlow时的两个技术挑战。首先，随着标准化的不断发展，我们重点介绍了OpenFlow协议中存在的一些编程挑战和缺失的特性。其次，现有的基于openflow的网络堆栈缺乏一些架构组件，这降低了我们在网络编程时实现的灵活性。大多数SDN控制器暴露有限的抽象来构建网络应用程序，因此主要充当OpenFlow驱动程序。这迫使应用程序程序员使用几个OpenFlow原语。为了解决这个问题，我们详细阐述了我们目前在扩展SDN堆栈方面的工作，以改善我们的整体网络可编程性体验。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2013 IEEE 2nd International Conference on Cloud Networking (CloudNet)

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