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About Network Functions Virtualization .pptx
- 1. Network Functions Virtualization JNTUH UNIVERSITYCOLLEGE OF ENGINEERING SCIENCE & TECHNOLOGY KUKATPALLY , HYDERABAD DEPARTMENT OF INFORMATION TECHNOLOGY
- 2. TABLE OF CONTENT About NFV Virtualization Cloud network example NFV architecture Benefits of NFV Risks of NFV
- 3. What is NetworkFunctions Virtualization (NFV)? Network functions virtualization (NFV) is a way to virtualize network services, such as routers, firewalls, and load balancers, that have traditionally been run on proprietary hardware. 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. The NFV architecture is first proposed by the European Telecommunications Standards Institute (ETSI).
- 4. NFV can dofollowing three things Softwarization Virtualization Orchestration
- 5. Virtualization Virtualization istechnology that lets us to create useful IT services using resources that are traditionally bound to hardware. It allows you to use a physical machine’s full capacity by distributing its capabilities among many users or environments.
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- 7. NFV architecture It canbe divided into four layers: Virtualization Network Function (VNF) Layer NFV Infrastructure (NFVI) Layer Operation Support Subsystem (OSS) Layer Management and Orchestration (MANO) Layer
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- 9. 1. Virtualization NetworkFunction (VNF) Layer: This layer provides the virtualization environment that enables multiple VNFs to run on the same physical infrastructure. 2. NFV Infrastructure (NFVI) Layer This is the physical infrastructure that provides the computing, storage, and networking resources needed to support the VNFs. 3. Operation Support Subsystem (OSS)/Business Support System (BSS) Layer OSS deals with network, fault, configuration, and service management. BSS deals with customer management, product management, and order management 4. Management and Orchestration (MANO) Layer This component provides the management and orchestration functions needed to deploy, monitor, and manage the VNFs running on the NFVI. It includes functions such as service orchestration, resource allocation, fault management, and performance management.
- 10. The benefits ofusing NFV Service providers can run network functions on standard hardware instead of dedicated hardware Network functions are virtualized, multiple functions can be run on a single server Less physical hardware is needed Physical space, power, and overall cost reductions. Service providers deliver services and apps faster. Scalability, networks expand or contract based on demand.
- 11. Risks of networkfunctions virtualization Physical security controls are not effective: Virtualizing network components increases their vulnerability to new kinds of attacks compared to physical equipment that is locked in a data center. Malware is difficult to isolate and contain: It is easier for malware to travel among virtual components that are all running off of one virtual machine than between hardware components that can be isolated or physically separated. Network traffic is less transparent: Traditional traffic monitoring tools have a hard time spotting potentially malicious anomalies within network traffic that is traveling east-west between virtual machines, so NFV requires more fine-grained security solutions. Complex layers require multiple forms of security: Network functions virtualization environments are inherently complex, with multiple layers that are hard to secure with blanket security policies.
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