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request system software nonstop-upgrade



Nonstop software upgrade enables you to upgrade a QFabric system with minimal packet loss and maximum uptime. You should upgrade the devices in the following order: Director group, fabric controls and Interconnect devices, and network and server Node groups.


Before you perform a nonstop software upgrade, contact JTAC to perform a pre-upgrade health check on the QFabric system.



Location from which the software is to be installed. For example:

  • protocol://hostname/pathname/package-name—For a software package or bundle that is to be downloaded and installed from a remote location. Replace protocol with one of the following:

    • ftp—File Transfer Protocol.

      Use ftp://hostname/pathname/package-name. To specify authentication credentials, use ftp://<username>:<password>@hostname/pathname/package-name. To have the system prompt you for the password, specify prompt in place of the password. If a password is required, and you do not specify the password or prompt, an error message is displayed.

    • http—Hypertext Transfer Protocol.

      Use http://hostname/pathname/package-name. To specify authentication credentials, use http://<username>:<password>@hostname/pathname/package-name. If a password is required and you omit it, you are prompted for it.

    • scp—Secure copy (available only for Canada and U.S. version).

      Use scp://hostname/pathname/package-name. To specify authentication credentials, use scp://<username>:<password>@hostname/pathname/package-name.

  • The pathname in the protocol is the relative path to the user’s home directory on the remote system and not the root directory.


Install software package on the Director group and Fabric managers.


Install software package on the Interconnect devices and Fabric controls.

node-group name

Install software package on the redundant server Node group, server Node group, or network Node group.

Required Privilege Level


Output Fields

When you enter this command, you are provided feedback on the status of your request.

Sample Output

request system software nonstop-upgrade director-group

request system software nonstop-upgrade fabric

request system software nonstop-upgrade node-group (Redundant Server Node Group)

request system software nonstop-upgrade node-group (Server Node Group)

Release Information

Command introduced in Junos OS Release 12.2.