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[MX] Will JDM's reboot/shutdown affect currently running GNFs?

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Article ID: KB37430 KB Last Updated: 27 Aug 2021Version: 1.0
Summary:

When customers maintain node slicing on MX Series routers, they may need to reboot or shut down the Juniper Device Manager (JDM). This article seeks to address customer concerns over the effect that a shutdown or reboot of the JDM may have on the currently running Guest Network Function (GNF) VMs. 

Solution:

The Juniper Device Manager (JDM), which is a virtualized Linux container, enables provisioning and management of GNF VMs. A JDM performs the following:

  1. Provisions GNF VMs

    • Creates, deletes, starts, and stops GNF VMs

    • Ensures GNF VM console connectivity

  2. Monitors GNF VMs

  3. Manages GNF VM Junos OS image repository

  4. Manages GNF VM virtual disks

After the GNF VMs have been created and are running in a stable manner, they do not rely on the JDM's status, which means that reboot, shutdown, or upgrade of the JDM will not affect the running GNF VMs. 

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