vMX Revolutionizes Economics and Service Creation. Today’s edge networks are hardware-centric, complex, and they inhibit service agility and velocity. Scaling and upgrading services requires tremendous upfront capital investments for service providers, all but limiting them to the most proven markets and services.
http://www.juniper.net/us/en/products-services/routing/mx-series/vmx/
Note these important characteristics of the .vmx file: 1  The .vmx file is typically located in the directory where you created the virtual machine.  In Windows XP and Server 2003, the default location for the file is: C:\Documents and Settings\your_user_name\My Documents\Virtual Machines\virtual_machine_name.vmx.
https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1714
In computing, x86 virtualization refers to hardware virtualization for the x86 architecture. It allows multiple operating systems to simultaneously share x86 processor resources in a safe and efficient manner. In the late 1990s x86 virtualization was achieved by complex software techniques, necessary to compensate for the processor's lack of virtualization support while attaining reasonable performance.
https://en.wikipedia.org/wiki/X86_virtualization
The vMX is a virtual MX Series 3D Universal Edge Router that extends 15+ years of Juniper Networks edge routing expertise to the virtual realm. The vMX is a full-featured, carrier-grade router with complete control, forwarding and management planes. It runs the Junos Operating System, and supports vTrio packet handling and forwarding by compiling the programmable Junos Trio chipset microcode for x86 chipsets.
http://www.juniper.net/us/en/products-services/routing/mx-series/vmx/
Note these important characteristics of the .vmx file: 1  The .vmx file is typically located in the directory where you created the virtual machine. 2  In Windows XP and Server 2003, the default location for the file is:  In Windows Vista, Windows 7, and Windows Server 2008, the default location for the file is:
https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1714
Before you edit the .vmx file: 1  Always power off the virtual machine. 2  Make sure you are logged on as a user with the correct permission level to edit the file. 3  Make a backup copy of the .vmx file.  For more information on using the vi editor to edit files, see Editing files on an ESX host using vi or nano (1020302).
https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1714
In the worst case event where the original VMX file is somehow corrupted, the virtual machine can be restored using the edit file. This is another reason why you should not be manually editing a virtual machine's VMX file, especially when it is still powered on. For any VMX configuration changes, you should be automating using the vSphere API through the use of either PowerCLI or the vSphere SDK for Perl.
http://www.virtuallyghetto.com/2013/02/why-are-there-two-vmx-files.html
In protected mode the operating system kernel runs at a higher privilege such as ring 0, and applications at a lower privilege such as ring 3. In software-based virtualization, a host OS has direct access to hardware while the guest OSs have limited access to hardware, just like any other application of the host OS.
https://en.wikipedia.org/wiki/X86_virtualization
Revolutionary carrier-grade virtual routing for enterprise and service provider networks. vMX is a true MX Series 3D Universal Edge Router that is optimized to run as software on x86 servers. It helps service providers and enterprises quickly and economically address their requirements with carrier-class routing and a DevOps style service-focus to the network.
http://www.juniper.net/us/en/products-services/routing/mx-series/vmx/
1 The .vmx file is typically located in the directory where you created the virtual machine.  In Windows XP and Server 2003, the default location for the file is: C:\Documents and Settings\your_user_name\My Documents\Virtual Machines\virtual_machine_name.vmx.
https://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1714
what is vmx
VMX is a full-featured, carrier-grade router with complete control, forwarding and management planes. The VMX is a full featured, carrier grade router with complete control, forwarding and management planes.