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SDN and NFV Simplified: A Visual Guide to Understanding Software Defined Networks and Network Function Virtualization by Jim Doherty

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3. Hypervisors (VMWare, KVM, and Others)

Most of the conversation about virtualization usually centers on virtual machines (VMs). This is perfectly reasonable because VMs are the things you “see and touch.” However, when you pull back the covers on virtualization, you’ll find that the hypervisor does much of the important work. In fact, the hypervisor is the thing that is doing the virtualization and pulling the strings for each VM.

A hypervisor is

Image An operating system for operating systems

Image A Virtual Machine (VM) Monitor

That’s pretty much it—nice ...

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