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The vMX Virtual Router (vMX) is an MX Series router optimized to run on x86 servers. vMX is supported on Red Hat Enterprise Linux, CentOS, and Ubuntu.


See System Requirements for details on each supported environment.

vMX enables you to leverage Junos OS Release 18.4R1 to provide a quick and flexible deployment. vMX provides the following benefits:

  • Optimizes carrier-grade routing for the x86 environment

  • Simplifies operations as the management and configuration are the same as for MX Series routers

  • Introduces new services without requiring a reconfiguration of the current infrastructure

This release of vMX supports most of the features available on Juniper Networks MX Series routers.

Starting with Junos OS Release 18.4R1, vMX documentation has changed to a release-independent presentation model. This means that you will find only one version of vMX documentation in the TechLibrary pages on You can now view what has changed for individual features by release within the documentation pages. In addition, a summary of all changes made to the contents is provided in the Release History table at the end of the documentation page. To find details about the changes, use the links provided in the Release History table to navigate to the relevant location in the page.