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Now generally it's inefficient to run multiple operating systems on the same hardware.

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In other words in this example I'm running Windows as what's called my host operating system and then

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I'm running Linux as a guest operating system within virtualization software or a hypervisor which in

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this case is VM way workstation

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so the terminology once again the operating system installed on the hardware is called The Host operating

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system

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the hardware is called Bare metal hardware.

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So in this example the virtualization software in other words VMware Workstation is not installed directly

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on the bare metal hardware.

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The virtualization software is running as an application within Windows.

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Windows is installed directly on the hardware.

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A more efficient way of doing this is to run the virtualization software directly on the bare metal

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hardware.

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So in this example I've connected to a VM where E6 I server this as a physical server that has the VM

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where hypervisor software installed directly on it.

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So the VM where yes sex Software is software that you install directly onto a bare metal server.

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You don't run it to within another hypervisor.

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Now you can like I've done here run E6 I within iOS 6 I but that's only for testing.

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Typically what you do is you would run year six high directly on bare metal hardware and then you would

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run multiple virtual machines on iOS 6 I that gives you more scale and better utilization of your hardware

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rather than running a host operating system such as Windows on the hardware that's consuming resources

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and then installing virtualization software and then running your virtual machines.

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In this example the virtual machines are running directly on hypervisor software installed directly

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on hardware so in this example I've got Cisco Call Manager software installed in a virtual machine on

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iOS 6 I see what I can do as an example is open up a web browser to that virtual machine so back in

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the console of the virtual machine I can use Cisco commands such as Show Network eith zero that shows

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me the IP address of this virtual machine and I've not connected to that virtual machine from a web

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browser within Windows and I can log in to the Cisco Call Manager which is running in a virtual machine

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on iOS 6 I so this server that I've connected to has an IP address of 1 9 2 1 6 8 1 2 4 2 back to the

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Cisco call manager has a different IP address my local windows P.C. in this example has multiple IP

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addresses configured but he's using a separate IP address to the virtual machine which is different

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to the ESM outside server so when you connect to Web sites such as Facebook or Cisco there'll be many

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servers running within data centers that are providing the hosting for these Web sites and the back

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end software such as databases

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those servers are typically not physical servers they are virtual servers running on hypervisor software

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such as E6.

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So you can have multiple virtual servers running on a single physical server.

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In this example I've got one server but notice I've got many virtual machines that can run on that single

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server.

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And in addition I can run virtual routers and other virtual devices as virtual machines on the same

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server.

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So this is a Cisco CSR Cisco services right at 1000 V which is a virtual router running as a virtual

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machine on the hypervisor which in this case is E6 I.