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request vmhost software rollback



Roll back the Junos OS and the host OS software packages to the previous versions. You can revert to the previous versions of software packages that were loaded at the last successful request vmhost software add command.


none—Roll back the software packages of the Routing Engine on the local Virtual Chassis member.

re0 | re1

(Optional) On devices that support dual or redundant Routing Engines, roll back the software packages in Routing Engine in slot 0 (re0) or software packages in the Routing Engine in slot 1 (re1).


The QFX10002-60C and PTX10002-60C devices do not have primary and backup routing engines.


(Optional) Specify the Routing Engine on which the software packages needs to be rolled back to the previous set of software packages. The following options are available:

  • backup—Backup Routing Engine.

  • both—Both Routing Engines.

  • local—Routing Engine on the local Virtual Chassis member.

  • master—Primary Routing Engine.

  • other—Other Routing Engine.

Required Privilege Level


Output Fields

Sample Output

request vmhost software rollback




Release Information

Command introduced in Junos OS Release 15.1F3.


PTX3000 router supports the Routing and Control Board, RCBPTX.