What Are The Benefits Of Virtualization

Nearly all computing and networking resources are being virtualized today. The major enabler of this has been the significant advances in the Internet technology and the underlying Telecommunications Networks and devices. Some of the benefits of Virtualization are - the efficient use of existing computing resources by dividing it among different users and departments and defining clear boundaries of access, the pooling of storage, processing power, and networks to achieve a high levels of computing, the flexibility to move resources around different departments of an office, or different geographic locations without having to touch the underlying physical resources and the ability to manage these virtual resources easily through software and Application Programming Interfaces (API).
Network Virtualization is gaining lot of traction today is one of the hot topics being researched. It is virtualizing most of the main components of a Network Infrastructure itself like the Network Interface Cards (NICs), Layer 2 (L2) Switches, Layer 3 (L3) Switches and Routers, Local Area Networks (LANs). The rationale behind this are the reasons for virtualization mentioned above along with some specific Computer Networking flexibilities which can be achieved. Virtual NICs make running multiple Virtual Machines (VMs) on existing hardware or pooled

One of the main benefits is a global view of the Network which helps in making efficient routing decisions and provides flexibility in designing networks. The Control plane can also achieve a much faster convergence for any changes in the underlying network than compared to the existing technology which depends on the routing protocols algorithms speeds and time taken for the topology changes to be propagated across the entire network. This indirectly limits the scalability and scope of the network which can be overcome with a central Control