Network functions virtualization (NFV) is the replacement of network appliance hardware with virtual machines. The virtual machines use a hypervisor to run networking software and processes such as routing and load balancing. [1]

Figure 1. Network function virtualization (NFV)

Network function virtualization (NFV) is shown in figure 1. Network function virtualization (NFV) is a telecommunications networking solution that replaces network components traditionally powered by hardware with software that fulfills the same functions. NFV-powered networks are easier to standardize and more flexible, expandable, manageable, and cost-effective.[2]

Benefits of network functions virtualization

The NFV concept was originally presented by a group of network service providers at the SDN and OpenFlow World Congress in October 2012. These service providers sought a way to simplify and accelerate the process of adding new network functions or applications that could offer the following benefits:

• rapid deployment/li>
• ability to scale upward or downward with ease
• effortless upgrades through software and without expensive hardware replacements
• lower overall cost of network deployment and management.[3]

Advantages of NFV:

• Reduced space needed for network hardware
• Reduce network power consumption
• Reduced network maintenance costs
• Easier network upgrades
• Longer life cycles for network hardware
• Reduced maintenance and hardware costs

NFV reduces the need for dedicated hardware to deploy and manage networks by offloading network functions into software that can run on industry-standard hardware and can be managed from anywhere within the operator’s network.[4]

Overall, NFV has transformed the networking industry by providing a more flexible, efficient, and cost-effective way of managing network resources. As the technology continues to evolve, we can expect to see even more innovative use cases and benefits emerge in the years ahead.

References:

1. https://www.vmware.com/topics/glossary/content/network-functions-virtualization
2. https://www.spiceworks.com/tech/networking/articles/network-function-virtualization-nfv/
3. https://www.techtarget.com/searchnetworking/definition/network-functions-virtualization-NFV
4. https://www.blueplanet.com/resources/What-is-NFV-prx.html

Cite this article:

Gokula Nandhini K (2023), Network function virtualization (NFV), Anatechmaz, pp.94