Network virtualization is a technology that enables the creation of virtual networks on top of physical networks. It allows for the abstraction of physical network resources, such as routers, switches, and firewalls, into virtualized network elements. This allows for the creation of multiple virtual networks on a single physical network, allowing for greater flexibility and scalability. Network virtualization also allows for the creation of virtual networks that span multiple physical networks, allowing for the creation of hybrid networks. Network virtualization is used in a variety of applications, such as cloud computing, software-defined networking, and network-as-a-service. It is also used to improve network security, by allowing for the creation of isolated virtual networks that are not accessible from the public internet. Some companies in the network virtualization market include VMware, Cisco, Juniper Networks, Hewlett Packard Enterprise, and Microsoft. Show Less Read more
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