Network Functions Virtualization
Network Functions Virtualization (NFV) is the process of abstracting network functions, such as routing, firewalls, load balancing, or WAN optimization, from dedicated hardware appliances to run on virtual machines. NFV enables the deployment of these services dynamically and on-demand, improving scalability, and reducing the need for dedicated hardware. It simplifies network management, reduces costs, and increases flexibility. NFV can be used in combination with software-defined networking (SDN) to provide end-to-end control and optimization of the network infrastructure.
Network Functions Virtualization - Full Guide
What is Network Functions Virtualization?
Network Functions Virtualization (NFV) is a network architecture concept that uses virtualization technology to manage core networking functions. It aims to replace traditional dedicated network devices with virtual machines that can run on standard servers.
Why is it Important?
NFV offers numerous benefits. These include: cost reductions, improved network scalability and flexibility, faster service deployment, improved disaster recovery processes, and reduced vendor lock-in.
How does it Work?
NFV works by decoupling network functions (like routing, firewalling, or load balancing) from dedicated hardware devices and hosting them on a virtual machine. These functions are henceforth managed by software, which increases network automation and agility.
Exam Tips: Answering Questions on Network Functions Virtualization
1. Understand the concepts: Ensure to grasp the key concepts, including the basic principles of NFV and why it is used in networking.
2. Know the benefits: Be familiar with the benefits of using NFV, such as improved network functionality and cost efficiency.
3. Understand the workings: Have a clear idea of how NFV works and its implications for network management.
4. Practice scenarious: Apply the concepts in practical scenarios, such as how NFV would aid in network disaster recovery.
5. Review and revise: To retain concepts better, regularly revise them, especially closer to exam time.
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