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.

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.

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./li>

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.

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