Need for Network Functions Virtualization (NFV)
NFV is necessary because it makes it possible to isolate communication services from specialized hardware, such as firewalls and routers. As a result, network operations can provide new services on demand and there is no longer a need to purchase new hardware. Instead of months as with traditional networking, this allows network components to be deployed in a matter of hours. Moreover, less expensive generic servers can run the virtualized services.
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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