Network Function Virtualization
Network Function Virtualization - Related Videos
07:49
Automated Deployment of an Internet Protocol Telephony Service on Unmanned Aerial Vehicles Using Network Functions Virtualization
0 Views •
Cited by 10 •
2019
The objective of the described protocol is twofold: to configure a network functions virtualization environment using unmanned aerial vehicles as computational entities providing the underlying structure to execute virtualized network functions and to use this environment to support the automated deployment of a functional internet protocol telephony service over the aerial vehicles.
12:09
Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy
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Cited by 35 •
2014
The Default Mode Network (DMN) in Temporal Lobe Epilepsy (TLE) is analyzed in the resting state of the brain using seed-based functional connectivity MRI (fcMRI).
16:33
Functional Calcium Imaging in Developing Cortical Networks
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Cited by 32 •
2011
Spontaneous activity of developing neuronal networks can be measured using AM-ester forms of calcium-sensitive indicator dyes. Changes in intracellular calcium, indicating neuronal activation, are detected as transient changes in indicator fluorescence with one- or two-photon imaging. This protocol can be adapted for a range of developmentally-dependent neuronal networks in vitro.
01:25
Network Function of a Circuit
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2024
Frequency response analysis in electrical circuits provides vital insights into a circuit's behavior as the frequency of the input signal changes. The transfer function, a mathematical tool, is instrumental in understanding this behavior. It defines the relationship between phasor output and input and comes in four types: voltage gain, current gain, transfer impedance, and transfer admittance. The critical components of the transfer function are the poles and zeros. Here, zeros are roots of...
05:07
Isolation, Characterization and Functional Examination of the Gingival Immune Cell Network
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Cited by 30 •
2016
We have established a technique for the isolation, phenotypic characterization and functional analysis of immune cells from murine gingiva.
FAQs
Network Function Virtualization moves the software that performs functions such as routing, firewall protection, and load balancing away from dedicated appliances. The software can then run on general-purpose computing infrastructure and be packaged, deployed, connected, and managed as virtual network functions. This separation allows engineers to change or provision services without replacing purpose-built hardware.
Virtualization provides the mechanism for packaging network-function software so that it can operate on shared computing infrastructure. It also supports the deployment and connection of multiple virtual network functions across servers, data centers, or cloud environments. In an engineered network, this creates a software-based structure that can be centrally managed and adapted as service requirements change.
Centralized orchestration coordinates how virtual network functions are deployed, connected, and managed, while dynamic scaling allows network capacity or services to be adjusted as needs change. Together, these capabilities support more flexible service provisioning than hardware-bound deployment. They are particularly relevant when engineers need adaptable network behavior across data-center or cloud environments.
Hardware-bound deployment relies on dedicated appliances for functions such as firewalls, routers, and load balancers. NFV instead separates the function software from proprietary hardware and places it on general-purpose infrastructure. This approach can reduce dependence on specialized appliances while enabling faster updates, more flexible provisioning, and centralized management of network services.
A typical NFV workflow begins by packaging the required network-function software, placing it on general-purpose computing infrastructure, and deploying it across suitable servers, data centers, or cloud environments. Engineers then connect the virtual network functions and manage them through centralized orchestration. These steps create a service structure that can be provisioned and adjusted without relying entirely on dedicated hardware.
NFV can support telecommunications networks, enterprise networks, and cloud networks. In these settings, engineers may use virtualized firewalls, routers, or load balancers to build services that are easier to provision, scale, and update. The resulting architecture can reduce reliance on specialized appliances and help organizations create networks that adapt more readily to changing service requirements.