What is the process of Virtualizing Network Functions?
Network Functions Virtualization (NFV) runs as software and relies on general-purpose computing resources, like those found in servers and switches, in contrast to dedicated hardware devices like traditional switches, routers, firewalls, and load balancers that perform these network functions. Such base network functionalities are virtualized in software-based network functions (VNFs) that can be deployed on standard servers, storage, and switches.
NFV does this through the application of a virtualization layer, which serves to host a range of VNFs on the same device. This intermediate level between the two is referred to as virtualization, which separates the VNFs to run independently of each other and also has the ability to manage and assign resources efficiently in such a way that each VNF only gets the required resources to work effectively.
Network Functions Virtualization (NFV) Implementation Challenges
Network functions virtualization (NFV) is a virtualization approach for network architecture where network devices such as routers or switches are replaced by VNFs running on standard servers or switches.
In a typical network, general networking equipment like switches, routers, firewalls, and load balancers carry out the implementation of particular networking tasks. Under NFV, functions were operated virtually as applications on commercial off-the-shelf hardware, which resulted in higher flexibility, scalability, and cost-effectiveness of the function system.
NFV allows telecom operators to quickly and effectively provision network services exactly where and when they are needed, and this is done without equipping them with physical hardware and also avoiding their maintenance. Operators can also ship their capital and operations down while giving in their network agility, flexibility, and scalability by virtualizing network features.
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