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5 Open Source Software Defined Networking Projects to Know
============================================================
![SDN](https://www.linux.com/sites/lcom/files/styles/rendered_file/public/software-defined-networking_0.jpg?itok=FeWzZo8n "SDN")
SDN is beginning to redefine corporate networking; here are five open source projects you should know.[Creative Commons Zero][1]Pixabay
Throughout 2016, Software Defined Networking (SDN) continued to rapidly evolve and gain maturity. We are now beyond the conceptual phase of open source networking, and the companies that were assessing the potential of these projects two years ago have begun enterprise deployments. As has been predicted for several years, SDN is beginning to redefine corporate networking.
Market researchers are essentially unanimous on the topic. IDC published[ a study][3] of the SDN market earlier this year and predicted a 53.9 percent CAGR from 2014 through 2020, at which point the market will be valued at $12.5 billion. In addition, the Technology Trends 2016 report ranked SDN as the best technology investment for 2016.
"Cloud computing and the 3rd Platform have driven the need for SDN, which will represent a market worth more than $12.5 billion in 2020\. Not surprisingly, the value of SDN will accrue increasingly to network-virtualization software and to SDN applications, including virtualized network and security services. Large enterprises are now realizing the value of SDN in the datacenter, but ultimately, they will also recognize its applicability across the WAN to branch offices and to the campus network," said[ Rohit Mehra][4], Vice President of Network Infrastructure at IDC.
The Linux Foundation recently[ ][5]announced the release of its 2016 report[ "Guide to the Open Cloud: Current Trends and Open Source Projects."][6] This third annual report provides a comprehensive look at the state of open cloud computing, and includes a section on unikernels. You can[ download the report][7] now, and one of the first things to notice is that it aggregates and analyzes research, illustrating how trends in containers, unikernels, and more are reshaping cloud computing. The report provides descriptions and links to categorized projects central to today’s open cloud environment.
In this series, we are looking at various categories and providing extra insight on how the areas are evolving. Below, you’ll find several important SDN projects and the impact that they are having, along with links to their GitHub repositories, all gathered from the Guide to the Open Cloud:
### Software-Defined Networking
[ONOS][8]
Open Network Operating System (ONOS), a Linux Foundation project, is a software-defined networking OS for service providers that has scalability, high availability, high performance and abstractions to create apps and services. [ONOS on GitHub][9]
[OpenContrail][10]
OpenContrail is Juniper Networks’ open source network virtualization platform for the cloud. It provides all the necessary components for network virtualization: SDN controller, virtual router, analytics engine, and published northbound APIs. Its REST API configures and gathers operational and analytics data from the system. [OpenContrail on GitHub][11]
[OpenDaylight][12]
OpenDaylight, an OpenDaylight Foundation project at The Linux Foundation, is a programmable, software-defined networking platform for service providers and enterprises. Based on a microservices architecture, it enables network services across a spectrum of hardware in multivendor environments. [OpenDaylight on GitHub][13]
[Open vSwitch][14]
Open vSwitch, a Linux Foundation project, is a production-quality, multilayer virtual switch. It’s designed for massive network automation through programmatic extension, while still supporting standard management interfaces and protocols including NetFlow, sFlow, IPFIX, RSPAN, CLI, LACP, and 802.1ag. It supports distribution across multiple physical servers similar to VMware’s vNetwork distributed vswitch or Cisco’s Nexus 1000V. [OVS on GitHub][15]
[OPNFV][16]
Open Platform for Network Functions Virtualization (OPNFV), a Linux Foundation project, is a reference NFV platform for enterprise and service provider networks. It brings together upstream components across compute, storage and network virtualization in order create an end-to-end platform for NFV applications. [OPNFV on Bitergia][17]
--------------------------------------------------------------------------------
via: https://www.linux.com/news/open-cloud-report/2016/5-open-source-software-defined-networking-projects-know
作者：[SAM DEAN][a]
译者：[译者ID](https://github.com/译者ID)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:https://www.linux.com/users/sam-dean
[1]:https://www.linux.com/licenses/category/creative-commons-zero
[2]:https://www.linux.com/files/images/software-defined-networkingjpg-0
[3]:https://www.idc.com/getdoc.jsp?containerId=prUS41005016
[4]:http://www.idc.com/getdoc.jsp?containerId=PRF003513
[5]:https://www.linux.com/blog/linux-foundation-issues-2016-guide-open-source-cloud-projects
[6]:http://ctt.marketwire.com/?release=11G120876-001&id=10172077&type=0&url=http%3A%2F%2Fgo.linuxfoundation.org%2Frd-open-cloud-report-2016-pr
[7]:http://go.linuxfoundation.org/l/6342/2016-10-31/3krbjr
[8]:http://onosproject.org/
[9]:https://github.com/opennetworkinglab/onos
[10]:http://www.opencontrail.org/
[11]:https://github.com/Juniper/contrail-controller
[12]:https://www.opendaylight.org/
[13]:https://github.com/opendaylight
[14]:http://openvswitch.org/
[15]:https://github.com/openvswitch/ovs
[16]:https://www.opnfv.org/
[17]:http://projects.bitergia.com/opnfv/browser/

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5 个要了解的开源软件定义网络项目
============================================================
![SDN](https://www.linux.com/sites/lcom/files/styles/rendered_file/public/software-defined-networking_0.jpg?itok=FeWzZo8n "SDN")
SDN 开始重新定义企业网络。这里有五个应该知道的开源项目。[Creative Commons Zero][1]Pixabay
纵观整个 2016 年，软件定义网络（SDN）持续快速发展并变得成熟。我们现在已经超出了开源网络的概念阶段，两年前评估这些项目潜力的公司已经开始了企业部署。如几年来所预测的，SDN 正在开始重新定义企业网络。
这与市场研究人员的观点基本上是一致的。IDC 在今年早些时候公布了 SDN 市场的[一份研究][3]，它预计从 2014 年到 2020 年 SDN 的年均复合增长率为 53.9％，届时市场价值将达到 125 亿美元。此外，“Technology Trends 2016” 报告中将 SDN 列为 2016 年最佳技术投资。
IDC 网络基础设施副总裁，[Rohit Mehra][4] 说：“云计算和第三方平台推动了 SDN 的需求，这将在 2020 年代表一个价值超过 125 亿美元的市场。毫无疑问的是 SDN 的价值将越来越多地渗透到网络虚拟化软件和 SDN 应用中，包括虚拟化网络和安全服务，大型企业在数据中心实现 SDN 的价值，但它们最终会认识到其在分支机构和校园网络中的广泛应用。“
Linux 基金会最近[发布][5]了其 2016 年度报告[“开放云指南：当前趋势和开源项目”][6]。其中第三份年度报告全面介绍了开放云计算的状态，并包含关于 unikernel 的部分。你现在可以[下载报告][7]了，首先要注意的是汇总和分析研究，说明了容器、unikernel等的趋势是如何重塑云计算的。该报告提供了对当今开放云环境中心的分类项目的描述和链接。
在本系列中，我们会研究各种类别，并提供关于这些领域如何发展的更多见解。下面，你会看到几个重要的 SDN 项目及其所带来的影响，以及 GitHub 仓库的链接，这些都是从 Open Cloud 指南中收集的：
### 软件定义网络
[ONOS][8]
开放网络操作系统（ONOS）是一个 Linux 基金会项目，它是一个给服务提供商的软件定义网络操作系统，它具有可扩展性、高可用性、高性能和抽象功能来创建应用程序和服务。[ONOS 的 GitHub 地址][9]
[OpenContrail][10]
OpenContrail 是 Juniper Networks 的云开源网络虚拟化平台。它提供网络虚拟化的所有必要组件：SDN 控制器、虚拟路由器、分析引擎和已发布的上层 API。其 REST API 配置并收集来自系统的操作和分析数据。[OpenContrail 的 GitHub 地址][11]
[OpenDaylight][12]
OpenDaylight 是 Linux 基金会的一个 OpenDaylight Foundation 项目，它是一个可编程的、提供给服务提供商和企业的软件定义网络平台。它基于微服务架构，可以在多供应商环境中的一系列硬件上实现网络服务。[OpenDaylight 的 GitHub 地址][13]
[Open vSwitch][14]
Open vSwitch 是一个 Linux 基金会项目，具有生产级别质量的多层虚拟交换机。它通过程序化扩展设计用于大规模网络自动化，同时还支持标准管理接口和协议，包括 NetFlow、sFlow、IPFIX、RSPAN、CLI、LACP 和 802.1ag。它支持类似 VMware 的分布式 vNetwork 或者 Cisco Nexus 1000V 那样跨越多个物理服务器分发。[OVS 在 GitHub 的地址][15]
[OPNFV][16]
网络功能虚拟化开放平台 （OPNFV） 是 Linux 基金会项目，它用于企业和服务提供商网络的 NFV 平台。它汇集了计算、存储和网络虚拟化方面的上游组件以创建 NFV 程序的端到端平台。[OPNFV 在 Bitergia 上的地址][17]
--------------------------------------------------------------------------------
via: https://www.linux.com/news/open-cloud-report/2016/5-open-source-software-defined-networking-projects-know
作者：[SAM DEAN][a]
译者：[geekpi](https://github.com/geekpi)
校对：[校对者ID](https://github.com/校对者ID)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
[a]:https://www.linux.com/users/sam-dean
[1]:https://www.linux.com/licenses/category/creative-commons-zero
[2]:https://www.linux.com/files/images/software-defined-networkingjpg-0
[3]:https://www.idc.com/getdoc.jsp?containerId=prUS41005016
[4]:http://www.idc.com/getdoc.jsp?containerId=PRF003513
[5]:https://www.linux.com/blog/linux-foundation-issues-2016-guide-open-source-cloud-projects
[6]:http://ctt.marketwire.com/?release=11G120876-001&id=10172077&type=0&url=http%3A%2F%2Fgo.linuxfoundation.org%2Frd-open-cloud-report-2016-pr
[7]:http://go.linuxfoundation.org/l/6342/2016-10-31/3krbjr
[8]:http://onosproject.org/
[9]:https://github.com/opennetworkinglab/onos
[10]:http://www.opencontrail.org/
[11]:https://github.com/Juniper/contrail-controller
[12]:https://www.opendaylight.org/
[13]:https://github.com/opendaylight
[14]:http://openvswitch.org/
[15]:https://github.com/openvswitch/ovs
[16]:https://www.opnfv.org/
[17]:http://projects.bitergia.com/opnfv/browser/