Network Virtualization
Network virtualization is a technology that allows for the creation of a virtualized network infrastructure by abstracting the network resources, such as hardware and software, from the underlying physical network. It enables the creation of multiple virtual network segments, each with its own configurations, capabilities, and services, running on a shared physical network.
Key Components Associated With
Network Virtualization Include
Hypervisor or Virtual Switch
Network virtualization is often facilitated by a hypervisor or a virtual switch, which manages the virtualized network traffic and facilitates communication between virtual machines (VMs) or containers.
Virtual Machines (VMs) or Containers
VMs or containers run on physical servers and have their own virtualized network interfaces, allowing them to operate as if they were on separate physical machines.
Virtual LANs (VLANs)
VLANs are used to segment a physical network into multiple logical networks, creating isolated broadcast domains. In network virtualization, VLANs can also be used to create separate virtual networks.
Overlay Networks
Overlay networks create a logical network on top of the physical network. They encapsulate packets within the physical network, allowing the creation of separate, independent virtual networks over the same physical infrastructure.
Software-Defined Networking (SDN)
SDN plays a crucial role in network virtualization by allowing centralized control and programmability of the network, making it easier to manage and configure virtualized networks.
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