Specifications
NOTE: Juniper Networks supports direct software downgrades for a maximum of
three releases.
Downgrading the Software with the J-Web Interface
You can downgrade the software from the J-Web interface. For the changes to take
effect, you must reboot the router.
NOTE: This procedure applies only to downgrading one release of JUNOS software
with enhanced services to another. To downgrade JUNOS software with enhanced
services to the JUNOS software, see the JUNOS Software Migration Guide.
To downgrade software with the J-Web interface:
1. In the J-Web interface, select Manage>Software>Downgrade. The image of
the previous software version (if any) is displayed on this page.
NOTE: After you perform this operation, you cannot undo it.
2. Select Downgrade to downgrade to the previous version of the software or Cancel
to cancel the downgrade process.
3. When the downgrade process is complete, for the new software to take effect,
click Manage>Reboot from the J-Web interface to reboot the router.
After you downgrade the software, the previous release is loaded, and you cannot
reload the running version of software again. To downgrade to an earlier version of
software, follow the procedure for upgrading, using the software image of JUNOS
software with enhanced services labeled with the appropriate release.
Downgrading the Software with the CLI
You can revert to the previous version of software using the request system software
rollback command in the CLI. For the changes to take effect, you must reboot the
router. To downgrade to an earlier version of software, follow the procedure for
upgrading, using the software image of JUNOS software with enhanced services
labeled with the appropriate release.
NOTE: This procedure applies only to downgrading one release of JUNOS software
with enhanced services to another. To downgrade JUNOS software with enhanced
services to the JUNOS software, see the JUNOS Software Migration Guide.
To downgrade software with the CLI:
1.
Enter the request system software rollback command to return to the previous
JUNOS software version:
JUNOS Software with Enhanced Services Upgrade and Downgrade Instructions ■ 17
JUNOS Software with Enhanced Services Upgrade and Downgrade Instructions