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Understanding OPNFV Starts Here
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============================================================
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The "Understanding OPNFV" book provides a high-level understanding of what OPNFV is and how it can help you or your organization. Download now.[Creative Commons Zero][1]Pixabay
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If telecom operators or enterprises were to build their networks from scratch today, they would likely build them as software-defined resources, similar to Google or Facebook’s infrastructure. That’s the premise of Network Functions Virtualization (NFV).
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NFV is a once in a generation disruption that will completely transform how networks are built and operated. And, [OPNFV][3] is a leading open source NFV project that aims to accelerate the adoption of this technology.
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Are you a telecom operator or connected enterprise employee wondering which open source projects might help you with your NFV transformation initiatives? Or a technology vendor attempting to position your products and services in the new NFV world? Or perhaps an engineer, network operator or business leader wanting to progress your career using open source projects (case in point, in 2013 Rackspace [stated][4] that network engineers with OpenStack skills made, on average, 13 percent more salary than their counterparts)? If any of this applies to you, the _Understanding OPNFV_ book is a perfect resource for you.
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In 11 easy-to-read chapters and over 144 pages, this book (written by Nick Chase from Mirantis and me) covers an entire range of topics from an overview of NFV, NFV transformation, all aspects of the OPNFV project, to VNF onboarding. After reading this book, you will have an excellent high-level understanding of what OPNFV is and how it can help you or your organization. This book is not specifically meant for developers, though it may be useful for background information. If you are a developer looking to get involved in a specific OPNFV project as a contributor, then [wiki.opnfv.org][5] is still the best resource for you.
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In this blog series, we will give you a flavor of portions of the book — in terms of what’s there and what you might learn.
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Let’s start with the first chapter. Chapter 1, no surprise, provides an introduction to NFV. It gives a super-brief overview of NFV in terms of business drivers (the need for differentiated services, cost pressures and need for agility), what NFV is and what benefits you can expect from NFV.
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Briefly, NFV enables complex network functions to be performed on compute nodes in data centers. A network function performed on a compute node is called a Virtualized Network Function (VNF). So that VNFs can behave as a network, NFV also adds the mechanisms to determine how they can be chained together to provide control over traffic within a network.
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Although most people think of it in terms of telecommunications, NFV encompasses a broad set of use cases, from Role Based Access Control (RBAC) based on application or traffic type, to Content Delivery Networks (CDN) that manage content at the edges of the network (where it is often needed), to the more obvious telecom-related use cases such as Evolved Packet Core (EPC) and IP Multimedia System (IMS).
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Additionally, some of the main benefits include increased revenue, improved customer experience, reduced operational expenditure (OPEX), reduced capital expenditures (CAPEX) and freed-up resources for new projects. This section also provides results of a concrete NFV total-cost-of-ownership (TCO) analysis. Treatment of these topics is brief since we assume you will have some NFV background; however, if you are new to NFV, not to worry — the introductory material is adequate to understand the rest of the book.
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The chapter concludes with a summary of NFV requirements — security, performance, interoperability, ease-of-operations and some specific requirements such as service assurance and service function chaining. No NFV architecture or technology can be truly successful without meeting these requirements.
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After reading this chapter, you will have a good overview of why NFV is important, what NFV is, and what is technically required to make NFV successful. We will look at following chapters in upcoming blog posts.
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This book has proven to be our most popular giveaway at industry events and a Chinese version is now under development! But you can [download the eBook in PDF][6] right now, or [order a printed version][7] on Amazon.
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--------------------------------------------------------------------------------
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via: https://www.linux.com/blog/opnfv/2017/8/understanding-opnfv-starts-here
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作者：[AMAR KAPADIA][a]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.linux.com/users/akapadia
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[1]:https://www.linux.com/licenses/category/creative-commons-zero
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[2]:https://www.linux.com/files/images/network-transformationpng
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[3]:https://www.opnfv.org/
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[4]:https://blog.rackspace.com/solving-the-openstack-talent-gap
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[5]:https://wiki.opnfv.org/
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[6]:https://www.opnfv.org/resources/download-understanding-opnfv-ebook
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[7]:https://www.amazon.com/dp/B071LQY724/ref=cm_sw_r_cp_ep_dp_pgFMzbM8YHJA9
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从这开始理解 OPNFV
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============================================================
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“理解 OPNFV”一书提供了高层次的什么是 OPNFV 的理解以及它如何帮助你和你们的组织。立即下载
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[Creative Commons Zero][1]Pixabay
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如果电信运营商或企业今天从头开始构建网络，那么他们可能用软件定义资源的方式构建，这与 Google 或 Facebook 的基础设施类似。这是网络功能虚拟化 （NFV） 的前提。
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NFV 是这一代的颠覆，将彻底改变网络的建设和运营。而且，[OPNFV][3]是一个领先的开源 NFV 项目，旨在加速这项技术的采用。
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你是想要知道有哪些开源项目可能会帮助你进行 NFV 转换计划的电信运营商或者相关的企业员工么？还是要将你的产品和服务推向新的 NFV 世界的技术提供商？或者, 也许是一名想使用开源项目来发展你事业的工程师、网络操作员或商业领袖？（例如 2013 年 Rackspace [提到][4] 拥有 OpenStack 技能的网络工程师的平均工资比他们的同行高 13%）？如果这其中任何一个适用于你，那么 _理解 OPNFV_ 一书是你的完美资源。
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本书（由 Mirantis 和 Nick Chase 和我撰写）在 11 个易于阅读的章节和超过 144 页中介绍了从 NFV、NFV 转换，OPNFV 项目的各个方面到 VNF 入门的概述，涵盖了一系列主题。阅读本书后，你将对 OPNFV 是什么有一个高层次理解以及它如何帮助你或你们的组织。这本书不是专门面向开发人员的，虽然它可能对背景信息很有用。如果你是开发人员，希望作为贡献者参与 OPNFV 项目，那么 [wiki.opnfv.org][5] 仍然是你的最佳资源。
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在本博客系列中，我们会向你展示本书的一部分内容发 - 就是有些什么，以及你可能会学到的。
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让我们从第一章开始。第 1 章，毫不奇怪，是对 NFV 的介绍。它从业务驱动因素（需要差异化服务、成本压力和敏捷需求）、NFV 是什么，以及你可从 NFV 可以获得什么好处的角度做了简要概述。
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简而言之，NFV 可以在数据中心的计算节点上执行复杂的网络功能。在计算节点上执行的网络功能称为虚拟网络功能 （VNF）。因此，VNF 可以作为网络运行，NFV 还会添加机制来确定如何将它们链接在一起，以提供对网络中流量的控制。
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虽然大多数人认为它用在电信，但 NFV 涵盖了广泛的用例，从基于应用或流量类型的基于角色的访问控制 （RBAC） 到用于管理边缘网络内容的内容分发网络 （CDN） 网络（通常需要的地方），更明显的电信相关用例如演进分组核心 （EPC） 和 IP 多媒体系统（IMS）。
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此外，一些主要收益包括增加收入、改善客户体验、减少运营支出 （OPEX）、减少资本支出 （CAPEX）和为新项目腾出资源。本节还提供了具体的 NFV 总体拥有成本 （TCO） 分析。这些话题的处理很简单，因为我们假设你有一些 NFV 背景。然而，如果你刚接触 NFV ，不要担心 - 介绍材料足以理解本书的其余部分。
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本章总结了 NFV 要求 - 安全性、性能、互操作性、易操作性以及某些具体要求，如服务保证和服务功能链。不符合这些要求，没有 NFV 架构或技术可以真正成功。
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阅读本章后，你将对为什么 NFV 非常重要、NFV是什么，以及 NFV 成功的技术要求有一个很好的概念。我们将在今后的博客文章中浏览下面的章节。
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这本书已被证明是行业活动上最受欢迎的赠品，中文版正在进行之中！但是你现在可以[下载 PDF 格式的电子书][6]，或者在亚马逊上下载[打印版本][7]。
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--------------------------------------------------------------------------------
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via: https://www.linux.com/blog/opnfv/2017/8/understanding-opnfv-starts-here
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作者：[AMAR KAPADIA][a]
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译者：[geekpi](https://github.com/geekpi)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]:https://www.linux.com/users/akapadia
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[1]:https://www.linux.com/licenses/category/creative-commons-zero
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[2]:https://www.linux.com/files/images/network-transformationpng
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[3]:https://www.opnfv.org/
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[4]:https://blog.rackspace.com/solving-the-openstack-talent-gap
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[5]:https://wiki.opnfv.org/
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[6]:https://www.opnfv.org/resources/download-understanding-opnfv-ebook
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[7]:https://www.amazon.com/dp/B071LQY724/ref=cm_sw_r_cp_ep_dp_pgFMzbM8YHJA9
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