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所在平台: Udemy |
课程主页: https://www.udemy.com/course/cisco-sd-wan-lab/
课程评论：没有评论
## 思科SD-WAN课程总结 本课程旨在深入探讨SD-WAN技术，将其与传统的MPLS技术进行对比，并阐述SD-WAN如何演进并解决现代网络面临的挑战。 **核心内容：** * **MPLS到SD-WAN的演进：** SD-WAN是MPLS技术的软件抽象，它将MPLS的私有连接能力扩展到更广泛的应用场景。SD-WAN能够实现安全、私有的连接，并且不受限于特定的链路类型和提供商，同时具备云感知能力。 * **SD-WAN的优势：** * **实时流量引导：** SD-WAN通过集中策略进行实时流量引导，而非像MPLS那样依赖备份链路来处理故障。 * **全局可视化和分析：** SD-WAN能够统一整个WAN骨干网，提供全局的、全面的网络分析，而传统WAN因基础设施和策略的分散而无法实现。 * **应对云化应用：** SD-WAN为企业适应SaaS和IaaS等云化应用提供了解决方案，解决了云端应用带来的流量激增问题，避免了员工生产力下降和WAN成本增加。 * **简化网络管理：** SD-WAN提供路由、威胁防护、优化昂贵链路的使用以及简化WAN网络管理等功能。 * **安全性：** SD-WAN强化了流量的安全性，所有流量在传输过程中都经过加密，以应对日益严峻的网络威胁。 * **应用可见性和监控：** SD-WAN能够区分关键业务应用和普通互联网浏览，为IT部门提供了对WAN的深入洞察。 * **自动化和简化部署：** SD-WAN的目标是简化WAN网络配置和安装，满足当今快速发展的业务需求，无需派工程师现场进行配置。 **课程要点：** 课程强调了SD-WAN在应对传统WAN架构局限性、支持云策略、增强安全性和提升网络管理效率方面的关键作用。通过学习本课程，学员将能够理解SD-WAN的核心概念、优势以及其在现代企业网络转型中的重要意义。
MPLS Vs SD-WANSD-WAN evolved from MPLS technology, which has powered private connectivity for more than two decades. In many ways, SD-WAN can be seen as a software abstraction of MPLS technology that's applicable to wider scenarios: It brings secure, private connectivity that's agnostic to all kinds of links and providers and is cloud-aware. While MPLS handled failure scenarios with backup links, SD-WAN handles them with real-time traffic steering based on centralized policy. Also, since SD-WAN unifies the entire WAN backbone, it delivers comprehensive analytics across the network globally. This wasn't possible before, because of disparate pieces of infrastructure and policy.The traditional WAN architecture was limited to enterprise, branch, and data center. Once an organization adopts cloud-based applications in the form of SaaS and IaaS, its WAN architecture experiences an explosion of traffic accessing applications distributed across the globe.These changes have multiple implications for IT. Employee productivity may be compromised by SaaS-application performance problems. WAN expenses can rise with inefficient use of dedicated and backup circuits. IT fights a daily, complex battle of connecting multiple types of users with multiple types of devices to multiple cloud environments.With SD-WAN, IT can deliver routing, threat protection, efficient offloading of expensive circuits, and simplification of WAN network management.Traditional WANs pass traffic in the clear, a luxury the New WAN cannot afford. With mounting cyber threats, securing traffic in transit is no longer an option. It is a requirement.Many WAN monitoring tools, fail to differentiate between business-critical Internet applications and general Internet browsing. With so many applications and many different kinds of users, insight into the WAN is more critical than ever.The WANs of old presumed on-site personnel to configure and adapt the network. The on-demand business of today is lean and mean with little tolerance for complex configuration and installation. Do you want to fly an engineer out to set up a new office? Probably not.
