Network virtualization

Network virtualization

What is network based virtualization? network virtualization. In computing, network virtualization or network virtualization is the process of combining hardware and software network resources and network functions into a single software control unit, a virtual network.

Why is network virtualization important?

Why is network virtualization important? The logic is the same as in the data center: with virtualization you get more out of your servers for less. The same goes for routers. Juniper's TX Matrix system (and related products) allows shippers to handle many large boxes as one unit.

What is a virtualized network function?

Network function virtualization (also called network function virtualization or NFV) is a network architecture concept that uses computer virtualization technologies to virtualize entire classes of network node functions into building blocks that can connect or communicate with each other to create communication services.

Do they need a network hypervisor for virtualization?

The hypervisor is the critical software that enables virtualization. It abstracts the actual hardware of the guest machines and the operating system they run on. Hypervisors create a virtualization layer that decouples CPU/processors, RAM, and other physical resources from the virtual machines they create.

What are the types of virtualization?

Virtualization allows you to integrate multiple servers into a single physical server so that each server appears to users as a separate server. Three common types of server virtualization are operating system virtualization, hardware emulation, and paravirtualization.

What are virtualization-aware networks?

What does VirtualizationAware Network (VMAware Network) mean? A network with virtualization (VMware network) is a computer network that uses the capabilities of network switches that are responsible for providing the first switch layer for managing virtual machines (VMs).

What is server virtualization in networking?

  • Definition of virtualization. Virtualization is the ability to simulate a hardware platform, such as a server, storage device, or network resource, in software.
  • Application of virtualization on the network.
  • Network virtualization and white box hardware.
  • virtual networks.
  • Network virtualization: key findings.

What is network based virtualization in computer

Network virtualization is the management and control of an entire computer network as a single administrative object from a single administrative software console. Network virtualization can include storage virtualization, where all storage is managed as a single resource.

:brown_circle: Definition of network based system

A network platform is a technology or software that connects users with other members of the community to create mutually beneficial opportunities.

:brown_circle: What is network-based IDS?

Network IDs typically monitor network packets for signs of reconnaissance, exploits, DoS attacks, and malware.

What is a network?

Architecture. Networks can be divided into peer-to-peer or client-server architectures. Computers on a network are sometimes referred to as nodes. The computers and devices that share resources on a network are called servers. (v.) A connection between two or more computers that can communicate with each other.

What is a network-based intrusion prevention system?

Network Intrusion Prevention System (NIPS) is a system for monitoring a network and protecting the confidentiality, integrity, and availability of a network. Its main features are network protection against threats such as denial of service (DoS) and unauthorized use.

:diamond_shape_with_a_dot_inside: What is network based virtualization software

VMware network virtualization comes in the form of VMware NSX. VMware NSX is an enterprise network security and virtualization platform for the software-defined data center (SDDC). A virtual network created with VMware NSX is a software container that provides logical network elements for connected workloads.

:diamond_shape_with_a_dot_inside: What is Network Automation with network virtualization?

Network automation with network virtualization is key to SDN and NFV technologies. This is expected to reduce costs and accelerate the delivery of network services by extracting network service configuration information from the physical infrastructure.

:diamond_shape_with_a_dot_inside: What is VMware and how does it work?

VMware software allows users to create multiple virtual environments or virtual desktop systems on a single computer or server. In essence, a single computer or server can be used to host or manage many virtual computer systems, sometimes as many as a hundred or more.

:brown_circle: What is VMware NSX and VMware SDN network virtualization?

VMware NSX is a VMware SDN network virtualization and security platform created by VMware after its acquisition of Nicira in 2012. This acquisition brought VMware into the software-defined networking (SDN) and network functions virtualization (NFV) markets.

:diamond_shape_with_a_dot_inside: Network based system

Network systems, on the other hand, are systems that can function on a network, but are not necessarily transparent to the user.

:brown_circle: What is a NIDS system?

NIDS can be hardware or software systems and connect to various network media such as Ethernet, FDDI and others, depending on the system manufacturer. NIDSs typically have two network interfaces. One is used to eavesdrop on network conversations, the other for monitoring and reporting.

:brown_circle: What is a strategic network segment unit?

Devices are placed on strategic network segments and can monitor network traffic for all devices in the segment. This configuration is a standard perimeter security network topology with filtered subnets in a perimeter network that hosts NIDS protected public servers.

What is network based virtualization technology

Network virtualization is a method of combining available resources on a network to consolidate multiple physical networks, segment a network, or create software networks between virtual machines (VMs). IT administrators using network virtualization can manage their environment as one software network.

What is network virtualization and how does it work?

Network virtualization is the new benchmark for networks used by organizations of all sizes around the world. Virtualization enables organizations to reduce operating costs, automate network and security protocols, and lay the foundation for future growth by consolidating existing network equipment into a single virtual network.

:diamond_shape_with_a_dot_inside: What are the two types of virtualization?

There are two types of network virtualization: external virtualization and internal virtualization. Remote network virtualization allows you to group systems physically connected to the same local area network (LAN) into separate virtual local area networks (VLANs), or conversely separate individual LANs into a single VLAN.

What is internal virtualization and how does it work?

Internal virtualization refers to the use of network functions in software containers on a single network server. Internal software allows virtual machines to communicate on the host without using an external network. Using network virtualization has its pros and cons, including:

What is itit virtualization and how does it work?

IT administrators using network virtualization can manage their environment as one software network. Network virtualization aims to optimize network speed, reliability, flexibility, scalability and security.

What is network based virtualization in operating system

Network virtualization allows you to manage and control the entire computer network as a single control unit. Administrators can monitor various elements of the network infrastructure, such as routers and switches, from a single management software console.

:diamond_shape_with_a_dot_inside: What is operating system virtualization?

Definition of operating system virtualization. At the operating system level, this is also known as virtualization. It is a kind of virtualization technology that works at the operating system level. This is where the operating system kernel allows multiple isolated userspace instances to exist.

What is network-based storage virtualization?

NAS virtualization is especially useful when storage resources from heterogeneous systems need to be combined into a virtual storage pool. In a business context, this approach is often used as part of a Storage Area Network (SAN).

What is kernel virtualization?

In OS virtualization, the OS kernel runs an OS and gives that OS the ability to replicate to any of the isolated platforms.

What is network based virtualization definition

Network virtualization (NV) refers to the abstraction of network resources that were traditionally transferred from hardware to software. NV can combine multiple physical networks into one virtual software network or divide a physical network into separate independent virtual networks.

What is virtualization and how does it work?

This is how virtualization works. Virtualization describes a technology that separates an application, guest operating system, or data storage from the underlying hardware or software. A major application of virtualization technology is server virtualization, which uses a software layer called a hypervisor to emulate the underlying hardware.

:eight_spoked_asterisk: What is virtualized network function (VNF)?

A virtualized network function, or VNF, can consist of one or more virtual machines or containers running various software and processes, in addition to standard servers, switches, and high-volume storage devices, or even cloud computing infrastructure, rather than through dedicated hardware. Provide devices for each network function.

:eight_spoked_asterisk: What is network virtualization?

What is Network Virtualization? Network virtualization is the transformation of what was once a hardware-based network into a software-based network.

What is virtual networking?

Virtual networks are a technology that makes it easy to manage one or more remote computers or servers over the Internet. Data can be stored and retrieved, software can be run, and devices can be controlled via a web browser as if the remote computer were on site.

:brown_circle: What does an application virtualization client do?

The application virtualization client manages a virtual environment in which virtualized applications run on each computer. After the client is installed on a computer, the applications are made available to the computer through a process called publishing, which allows the end user to run virtual applications.

:brown_circle: Why do they need virtualization?

Virtualization is being used by a growing number of organizations to reduce energy consumption, air conditioning requirements, and construction and real estate space historically associated with server farm growth.

Why is network virtualization important in business

Virtualization enables organizations to reduce operating costs, automate network and security protocols, and lay the foundation for future growth by consolidating existing network equipment into a single virtual network. At Megawire, they help their customers configure and manage virtualized networks as part of a comprehensive suite of managed IT services.

:brown_circle: What is a virtual server and how does it work?

Today, virtual server technology allows companies to deploy one server and use it to host multiple servers. This provides significant cost savings. Virtualization, the installation of virtual machines within an organization, is not a new trend.

:diamond_shape_with_a_dot_inside: Storage virtualization

Storage virtualization (sometimes called software-defined storage or virtual storage area network) is the combination of multiple physical storage arrays of storage networks into a single virtual storage device.

:eight_spoked_asterisk: What is virtualization-aware storage?

Storage with virtualization (VMware storage) is a type of computer data storage that allows you to easily manage and monitor virtual machines (VMs) in a virtualized environment. This allows you to manage storage together with virtual machines, rather than separately, as is the case with logical unit numbers (LUNs) or volumes.

:eight_spoked_asterisk: What is the difference between physical servers and VMS?

  • ID CARD. Server identification has traditionally been associated in some way with the physics of the server, making it relatively easy to uniquely identify a particular server.
  • Mobility. Unlike their physical counterparts, virtualized servers are designed for mobility.
  • Work capacity. Physical servers are generally enabled unless they are unavailable for maintenance.

:diamond_shape_with_a_dot_inside: What is server virtualization and what are the benefits?

Server virtualization minimizes costs by increasing the use of existing resources. This reduces the number of physical servers required, minimizes the cost of managing those servers, and minimizes the energy required to run and cool the servers.

:eight_spoked_asterisk: Network virtualization vmware

VMware Network Virtualization is also designed to enhance data center security by building security directly into the data center infrastructure. This allows users to deploy advanced partner services to enhance protection and mitigate risk. VMware NSX is committed to providing customers with the following benefits:

What are the advantages of a VMware Workstation?

  • Economical use of materials.
  • Much of your production environment can be replicated across multiple servers.
  • Lower hardware costs for the entire test environment
  • Faster rollback during testing
  • Faster implementation of the new test platform

What is the VMware virtual cloud network?

What is a VMware Virtual Cloud Network? Global vision. A virtual cloud network enables businesses to connect, better protect themselves, and optimize application and data delivery at a time when most workloads exist. product integration. When the NSX started out, it was quite a unique product that served its purpose without being competitive. hybrid connection. name changes

:diamond_shape_with_a_dot_inside: How does VMware NSX work?

VMware NSX is a network virtualization platform that allows you to deploy virtual networks on your virtual server and physical network infrastructure. Provides the virtual machine operating system for the network.

:brown_circle: How can virtualization improve the healthcare industry?

How can virtualization improve the healthcare sector? Virtualization can bring great benefits to any healthcare facility as it provides more efficient access to shared folders, better security, and an easy transition to mobile devices.

What is desktop virtualization and how does it work?

Desktop virtualization, the most common form of virtualization, takes this concept even further by removing as much hardware as possible while still delivering the level of performance the power user expects. Cloud storage technology eliminates the need to store information on the terminal.

:diamond_shape_with_a_dot_inside: What are the different types of virtualization?

Virtualization is not limited to desktops. There are several versions of virtualization, including Virtual Desktop Infrastructure (VDI), which removes desktop operating systems from mobile devices, and Virtual Mobile Infrastructure (VMI), which removes Android operating systems from mobile devices. What are the benefits of virtualization for the healthcare sector?

What is the process of virtualization?

Virtualization is the process of creating software or a virtual representation of something, such as a computer. B. virtual applications, servers, storage and networking.

:brown_circle: What is Network Functions Virtualization?

Virtualized Network Functions (VNF) Virtualized Network Functions are software applications that are used to provide various network functions such as IP configuration, directory services, mobile core, routing, security, and files. Infrastructure for virtualization of network functions. Network management, automation and orchestration.

:brown_circle: What are Virtual Network Functions (VNF)?

Virtual network functions (VNFs) are virtualized network services that run on open computing platforms previously deployed using proprietary and custom hardware technologies. Common VNFs include virtualized routers, firewalls, WAN optimization services, and network address translation (NAT).

:eight_spoked_asterisk: What is a virtual network?

The primary purpose of a virtual network is to enable a data center or network of service providers to implement the most appropriate and efficient network structure for the applications it hosts, and to modify that structure if necessary through the use of software in rather than requiring physical changes to the connections. to the fabric

What is a virtualized network function in programming

Virtualized Network Functions (VNF) are software implementations of network functions that can be implemented in a Network Functions Virtualization Infrastructure (NFVI). Network Functions Virtualization Infrastructure (NFVI) is the collection of all the hardware and software components that create the environment in which NFVs are deployed.

What is virtualvirtualization?

Virtualization is creating a virtual version rather than a real version of something, such as a computer. B. operating system, server, storage device or network resources.

:diamond_shape_with_a_dot_inside: What is Network Functions Virtualization infrastructure (NFVI)?

Network Functions Virtualization Infrastructure (NFVI) is the collection of all the hardware and software components that create the environment in which NFVs are deployed. An NFV infrastructure can span multiple locations. The network providing communication between these sites is considered part of the NFV infrastructure.

What is Java networking?

Java network. The package supports two commonly used network protocols: TCP: TCP stands for Transmission Control Protocol, which enables reliable communication between two applications. TCP is often used on top of an Internet protocol called TCP/IP.

What is a virtualized network function in python

The virtual network function is the core component of network function virtualization. A virtual network function is a virtualized network element used in implementing network function virtualization. If you virtualized the router, it would become a virtual network function.

What is a virtual network function?

What are the characteristics of the virtual network? Virtual network functions (VNFs) are virtualized tasks previously performed by special special hardware. VNFs migrate individual security and networking functions from dedicated hardware appliances to software running on conventional hardware.

What is Network Functions Virtualization (NFV)?

The logic behind NFV is to use software rather than hardware so that network administrators don't have to configure and manage physical devices. Manual devices are difficult to operate because they require maintenance and connection to each other. In comparison, NFV allows the user to interact with network functions at the server level.

What are virtualvnfs and how do they work?

VNFs migrate individual security and networking functions from dedicated hardware appliances to software running on conventional hardware. These tasks are used by both network service providers and businesses and include firewalls, domain name system (DNS), caching, and network address translation (NAT). They can also act as virtual machines (VMs).

:eight_spoked_asterisk: How to set virtual methods in Python?

Python methods are always virtual. See activity in this post. In fact, the Python version provides so-called abstract base classes, and you can explicitly define virtual methods like this: from abc import ABCMeta from abc import abstractmethod. Class C: __metaclass__ = ABCMeta @abstractmethod def my_abstract_method(self, .

:brown_circle: What is a virtualized network function in excel

Network Virtualization Capabilities – Enables functional grouping of hosts in a virtual network. This allows the virtual network to share network resources.

:brown_circle: What is the use of network days in Excel?

Working days of the Excel function. Excel's NETWORKDAYS function calculates the number of working days between two dates. NETWORKDAYS automatically excludes weekends (Saturday and Sunday) and can optionally exclude the list of holidays specified as dates. NETWORKDAYS includes the start and end dates when calculating working days.

What is the general form of a networkdays formula?

The general form of the formula is NETWORKDAYS: = NETWORK DAYS(beginning, end) // exclude weekends = NETWORK DAYS (begin, end, holiday) // exclude weekends + holidays In the example shown, holidays correspond to the range H5 :H13, including non-working days in 2021.

:brown_circle: What is a virtualized network function in c

A virtualized network function, or VNF, is implemented in one or more virtual machines or containers with various software and processes, as well as commercial off-the-shelf (COTS) servers, switches and storage devices, or even cloud computing. infrastructure instead of dedicated hardware devices for each network function, avoiding vendor lock-in.

What is a network functions virtualization architecture?

In a network function virtualization architecture, a virtualized network function or VNF is responsible for managing specific network functions running in one or more virtual machines on top of a hardware network infrastructure which may include routers, switches, servers, etc. cloud computing systems. , and more.

What is VNF (virtual network function?

In simple terms, VNF stands for Virtualized Network Function and generally refers to the software form of network devices such as routers, firewalls, load balancers, etc.

What is the difference between a VNF and a service?

A virtual network function (VNF) is a software implementation of a network function that can be easily deployed in virtual resources, such as a virtual machine (VM). A service is a service provider that consists of one or more VNFs. Let me give you an example of vEPC (Virtual Evolved Packet Core) as a service.

:brown_circle: What is a VNFC instance (vnfci)?

VNFC is the vendor-specific VNF component and VNFC Instances (VNFCI) are the runtime components that make up the VNF instance. To implement a VNF-defined VNF, the VNF Manager creates one or more VNFCIs, with each VNFCI sitting in its own virtualization container.

:eight_spoked_asterisk: What is a virtualized network function in data

A virtualized network function (VNF) can consist of one or more virtual machines with different software and processes, as well as standard servers, switches and storage devices, or even cloud computing infrastructure, at least instead of hardware devices customized for each network function.

What is virtualization hypervisor?

A hypervisor is a form of virtualization software used in cloud hosting to share and distribute resources between different pieces of hardware. A program that provides separation, isolation, or abstraction is called a virtualization hypervisor.

What makes server virtualization possible?

What makes virtualization possible are hypervisors. Server virtualization allows different operating systems to run separate applications on a server using the same physical resources. These virtual machines allow network and system administrators to have a dedicated machine for each service they need to run.

What is hyperhypervisor?

A hypervisor is a hardware virtualization technique that allows multiple guest operating systems (OS) to run simultaneously on a single host system. The hypervisor is also known as the virtual machine manager (VMM).

What is Hyper-V network virtualization (HNV)?

HyperV Network Virtualization (HNV), introduced in Windows Server 2012, provides client network virtualization based on a shared physical network infrastructure.

:brown_circle: What is the role of hypervisor in virtualization?

The hypervisor advances the concept of virtualization by enabling a physical host machine to host multiple virtual machines as guests to make the most efficient use of compute resources such as memory, network bandwidth, and CPU cycles. What remains local after virtualization and the cloud? What is Hyperconvergence?

How does a hypervisor allocate resources to a virtual machine?

The hypervisor allocates the correct CPU, memory, bandwidth, and disk space to each virtual machine. The virtual machine can make requests to the hypervisor in several ways, including API calls. Bare metal or native hypervisors.

What is Hyper-V virtual machine?

HyperV is a native hypervisor that can create virtual machines on x8664 systems. As of Windows 8, HyperV replaces Windows Virtual PC as the hardware virtualization component of Windows client editions (Wikipedia). Virtual machine (VM) A virtual machine (VM) is an emulation of a particular computer system.

:brown_circle: Do they need a network hypervisor for virtualization free

New. The hypervisor license is free, but only if you don't have additional management tools. Designed for small businesses and branch offices, the list price for VMware Infrastructure Foundation is $995. For $2,995 you get VMware Infrastructure Standard, a highly available infrastructure virtualization package for any workload.

:diamond_shape_with_a_dot_inside: Which type-1 server virtualization hypervisor should you choose?

VMware ESXi has long been recognized as the leader in server virtualization Type 1 hypervisors. And while they have a free version of vSphere Hypervisor, this offering doesn't include many of the advanced features that VMware is known for.

:diamond_shape_with_a_dot_inside: What is free VMware Hypervisor?

VMware vSphere Hypervisor is a free, powerful and reliable hardware hypervisor for server and desktop virtualization. In this article, let's take a look at the methods suggested by their support engineers to install and configure VMware Hypervisor for free.

What is the best hypervisor for Linux?

There is a wide variety of hypervisors available from traditional vendors and open source vendors. VMware is a popular choice for virtualization because it offers the ESXi hypervisor and vSphere virtualization platform. Kernel-based Virtual Machine (KVM) is an open source option built into the Linux kernel.

Do they need a network hypervisor for virtualization in computer

Hypervisor software makes virtualization easy. The hypervisor is installed on top of the operating system, but hypervisors can also be installed directly on hardware. Hypervisors take physical resources and allocate them for use in virtual environments.

:diamond_shape_with_a_dot_inside: Why do they need a hypervisor for virtual machines?

This allows the machine to run at full capacity and allocate its resources as needed. In general, it is a hypervisor that allows you to run virtual machines on a real machine. The hypervisor is also known as a virtual machine monitor (VMM), which creates and runs virtual machines.

What is the role of the hypervisor in distributed system?

The hypervisor is responsible for properly distributing the hardware, connecting to the hardware, and dividing it into virtual machines. Each of these virtual machines thinks it has its own storage, storage, network card, etc.

:diamond_shape_with_a_dot_inside: What is the difference between a hypervisor and a host?

The physical hardware used as a hypervisor is called a host and the set of virtual machines using its resources are called guests. The hypervisor sees resources such as CPU, memory, and storage as a pool that can be easily reallocated between existing guests or new virtual machines.

What type of hypervisor runs inside the operating system?

This type of hypervisor runs on the operating system of the physical host machine. That's why they call type 2 hypervisors: hosted hypervisors. Unlike type 1 hypervisors, which run directly on hardware, hosted hypervisors have a layer of software underneath. In this case you have: Physical machine.

:eight_spoked_asterisk: What is network virtualization in networking?

Network virtualization, the creation of a virtualized network address space within or between network subnets. A hypervisor, also known as Virtual Machine Manager (VMM), is one of several hardware virtualization methods that allow multiple operating systems, called guest operating systems, to run simultaneously on a host computer.

What is Hyper-V network virtualization?

HyperV Network Virtualization (HNV), introduced in Windows Server 2012, provides client network virtualization based on a shared physical network infrastructure.

Is there a hypervisor that is similar to Hyper-V?

In the Windows 10 package, this hypervisor is called HyperV Client and it is not as complete as HyperV because it comes with Windows Server or HyperV Server. I don't think there are direct comparisons to the HyperV client. There are several type 2 hypervisors around the world such as Virtual PC, VMware Workstation and Oracle VirtualBox.

What is Citrix Hypervisor and how does it work?

With Citrix Hypervisor, you can easily manage different types of workloads, mixed operating systems, and complex storage or network requirements, even in the most demanding business scenarios. This leading open source server virtualization platform offers enterprise-class features and performance. With Citrix Hypervisor you can:

What is virtualization and hypervisor?

VIRTUALIZATION AND HYPERVISOR. HYPERVISOR | by Competthecloud | calculate the cloud | Medium Hypervisor or Virtual Machine Manager (VMM) is the firmware or computer hardware that creates and runs virtual machines.

How does a virtual machine create a request to the hypervisor?

The virtual machine can make requests to the hypervisor in several ways, including API calls. There are two types of hypervisors: embedded or hosted hypervisors and. Bare metal or native hypervisors.

:brown_circle: Do they need a network hypervisor for virtualization windows 10

HyperV is not available for Windows 10 Home. Your computer's processor must support virtualization, especially SLAT (Secondary Address Translation). Virtualization must be enabled in your computer's BIOS.

:eight_spoked_asterisk: Is hardware virtualization required for Hyper-V to function correctly?

Hardware virtualization is required for HyperV to function properly. Otherwise, you can use other virtualization platforms such as Virtualbox and VMWare. There are four basic requirements to install HyperV on a Windows 10 machine: VM Monitor Mode Extensions.

:diamond_shape_with_a_dot_inside: How do I enable Hyper-V virtualization on Windows 10?

Open the Virtual Switch Manager in the HyperV Manager Action Pane by typing HyperV on the home screen. Make sure the Remote checkbox is checked and then click the Create Virtual Switch button. Below is a video presentation of the steps taken to complete the process of enabling virtualization in Windows 10.

Can Hyper-V manager run on Windows 10?

HyperV Manager Lower Level Management HyperV Manager can manage computers running HyperV on Windows Server 2012, Windows Server 2012 R2, and Windows.
Step 1 : Prerequisites To successfully run the HyperV client on Windows 10, the following prerequisites are required: If HyperV was not previously enabled, restart your computer for the changes to take effect.

Network virtualization for dummies

As the name suggests, "Network Virtualization For Dummies" explains it too. We're talking about the process of programmatically creating, deploying, and managing virtual networks, using the underlying physical network as a simple backplane to forward packets, and all of the implementation's components and functions. play in the software.

What is virtualization and VMware?

VMware is a provider of cloud computing and virtualization software based in Palo Alto, California. Founded in 1998, VMware is a subsidiary of Dell Technologies. EMC originally acquired VMware in 2004. EMC was later acquired by Dell Technologies in 2016.

Nsx network virtualization

The VMware NSX network virtualization platform is the third major pillar of VMware's software-defined data center (SDDC) architecture. NSX network virtualization brings to the network what VMware has already provided for compute and storage.

:eight_spoked_asterisk: Does NSX have WAF's capabilities?

With the acquisition of Avi Networks last year, VMware now offers enterprise-class WAF and load balancing capabilities for VCF and NSXT environments. VMware NSX (formerly Avi Networks) Advanced Load Balancer provides load balancing of software, WAF and Kubernetes application network services.

Is VMware NSX the key to container networking?

VMware has a programmable network offering called NSX, which is probably VMware's tool for managing container networks. A container is simply an executable program that runs on an isolated file system from the operating system. Usually the operating system is Linux, either in a virtual machine or on special physical hardware.

What is network virtualization

Network virtualization is the transformation of what was once a hardware-based network into a software-based network. As with all forms of computer virtualization, the primary goal of network virtualization is to introduce a layer of abstraction between physical hardware and the activities that use that hardware.