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ccna 200 301 bookshare app for ipad.So far we've covered multiple uses of virtualization, just short of virtualizing the ports and the switch itself. What do we talk about next? Let's take a look at the final step of virtualization.7.3.6 Virtualizing EverythingVirtual machines have become a staple in data center design. Hundreds of virtual machines may be running in a physical server, each running its own operating system and having access to the shared resources provided by the host. How do these VMs communicate with each other? Quite simply, because there is a virtual Ethernet interface on each virtual machine, and the switches they are connected to are similarly virtualized!The Nexus 1000V is a pure software switch with virtual ports that connect to the virtual interfaces of the virtual machines. However.Figure 7.17 Virtual Private Device VDCFor now, it's still running NX-OS, and it's also still an actual switch, transmitting actual data. The virtualization trend will continue, and virtualized switches will eventually become part of all networks, or part of a virtual network!7.4 SummaryIn this chapter, you have learned about the history and infrastructure of the CiscoNexus product line. We also covered some of the basics of hardware formation and some basic port types.We learned that NX-OS software is designed for the data center with many extraordinary features, including process recovery features. We also covered what it takes to enable these features.Virtualization was the biggest topic we discussed, including familiar virtualization technologies such as VLANs and Trunking. then we covered VRF (Virtual Routing and Forwarding) and VDC (Virtual Switches). The Nexus 1000V is a virtual switch that incorporates the above virtualization technologies.