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所在平台: Udemy |
课程主页: https://www.udemy.com/course/beginners-guide-software-defined-network-telco-cloud-nfv/
课程评论：没有评论
课程名称：初学者指南：软件定义网络、通信云与网络功能虚拟化 课程概述：软件定义网络（SDN）作为一个新兴概念，正在成为网络行业的热词。传统的IP网络复杂且难以管理，难以根据预设策略配置网络，也难以应对故障、负载和变化进行重新配置。此外，现有网络往往采用垂直集成的方式，将控制平面和数据平面捆绑在一起。软件定义网络（SDN）通过打破这种垂直集成，将网络控制逻辑与底层路由器和交换机分离，促进网络控制的逻辑集中化，并引入网络编程的能力，从根本上改变了这一现状。SDN为网络和云解决方案的自动化、高效和可扩展性提供了一种新的视角，尤其是在应用服务可能由本地、数据中心或云提供的新时代背景下。传统的刚性系统难以管理、维护和升级，因此，未来需要灵活性、简易性以及快速响应不断变化的IT和业务需求的能力。 课程还将介绍虚拟化的概念，虚拟化是创建能够虚拟化所有硬件资源（包括处理器、内存、存储和网络连接）的虚拟机的过程。这些物理硬件资源可以被一个或多个虚拟机共享。学员将学习与虚拟化相关的基本术语，包括服务器、虚拟机管理程序、客户操作系统、应用程序、网络接口卡和虚拟机等。 此外，课程将涵盖网络功能虚拟化（NFV）架构，简要介绍网络虚拟功能（VNF），它是NFV架构中的基本构件，是虚拟化后的网络元素。例如，当路由器被虚拟化时，我们称之为路由器VNF；另一个例子是基站VNF。元件管理系统（EMS）为VNF提供管理，类似于物理网络元素由其各自的EMS进行管理。学员还将学习网络功能虚拟化基础设施、虚拟化层、NFV编排器以及用于实现虚拟化概念的开源软件OpenStack等内容。
Software Defined Networking (SDN) concept has been becoming a buzz word in the networking industry. Traditional IP networks are complex and very hard to manage. It is both difficult to configure the network according to pre-defined policies, and to reconfigure it to respond to faults, load and changes. To make matters even more difficult, current networks are also vertically integrated: the control and data planes are bundled together. Software-Defined Networking (SDN) is an emerging paradigm that promises to change this state of affairs, by breaking vertical integration, separating the network's control logic from the underlying routers and switches, promoting (logical) centralization of network control, and introducing the ability to program the network. Software defined networking (SDN) is a new way of looking at how networking and loud solutions should be automated, efficient, and scalable in a new world where application services may be provided locally, by the data center, or even the cloud. This is impossible with a rigid system that's difficult to manage, maintain, and upgrade. Going forward, you need flexibility, simplicity, and the ability to quickly grow to meet changing IT and business needs. Virtualization refers to the creation of virtual machine that can virtualize all the hardware resources, including processors, memory, storage, and network connectivity. Physical hardware resources can be shared by one or more virtual machines. The course covers terminologies that need to be understood related to virtualization concepts. These terminologies are: Server Hypervisor Guest OS Application N I C Virtual Machine (or VM) The course also covers NFV architecture. Briefly, VNF (or Virtual Network Function): is the basic block in NFV Architecture. It is the virtualized network element. For example when a router is virtualized, we call it Router VNF; another example is base station VNF. EMS (or Element Management System): is the element management system for VNF. This is responsible for the management of VNF operation, in the same way as physical network elements are managed by their respective EMS of VNFs. Apart from all these, participants will learn about Network Function Virtualization Infrastructure, Virtualization Layers, NFV Orchestrator and open stack software used for implementation of the virtualization concepts.
