What Is Network Virtualization?

Network Virtualization is the creation of many virtual networks that operate on a single physical network. It is as if numerous parallel universes exist within one reality, each with its own rules and qualities. Why is Network Virtualization so crucial? In the IT industry, resources might be tight, and gear can be costly. Network Virtualization enables the creation of virtual networks that share the same physical resources, thereby saving money, reducing complexity, and enhancing scalability. It's like having a diverse, powerful, and efficient Swiss Army knife of networks. So how does it function? Essentially, it resembles playing with Legos. We begin with a collection of building blocks, such as switches, routers, and firewalls, and then develop virtual replicas of these devices using the software. With these virtual devices, we establish virtual networks, each with its regulations and rules. In Network Virtualization, you may encounter technical terms such as hypervisors, virtual switches, and virtual computers. Hypervisors are applications that construct and manage virtual machines. They function as an intermediary between real hardware and virtual machines, allowing several virtual machines to operate on a single physical computer. Virtual switches are software-based switches that link virtual machines with the physical network. They enable the creation of virtual networks entirely distinct from the physical network, allowing us to apply different security policies and procedures to each network. Virtual machines are computer systems that have been virtualized. Each virtual machine can run its operating system and programs on top of a hypervisor. This allows us to create several virtual computers on a single physical machine, maximizing our use of resources. Network Virtualization is a superpower that enables the creation of virtual networks with a few mouse clicks. Using software to construct and manage virtual devices and networks can help us save money, decrease complexity, and increase scalability. Remember the magic phrases Network Virtualization the next time you attempt to construct a virtual network.