Table of Contents
Overview
The traditional way of restoring a configuration from a backup configuration file required a switch reboot for the
new configurations to be effective. There were network outages and a planned downtime for even minor changes.
The switch configuration can now be restored from a backup configuration without reboot. It also provides hash of
the current running configuration, which can be used for auditing.
The backup configuration can be created using the new command cfg-backup. An existing method of copying a
configuration file from a remote location (for example, TFTP server) can also be used to backup a configuration or
copied from flash.
More information
show hash on page 574
cfg-backup on page 558
cfg-restore config_bkp on page 567
Benefits of configuration restore without reboot
•
Restores a new or modified configuration without reboot, with minimal network outage. Any NMS can use this
method for configuration rebase workflows. Only configurations that were exported from the switch can be
imported or restored on the switch.
•
Restores the configuration without reboot from a backup configuration when the running configuration has
functional issues, like misconfigurations from remote management stations.
Recommended scenarios
•
Use the configuration restore feature for incremental configuration updates.
•
Use the force option with cfg-restore, for commands which require reboot.
•
Use the verbose option to get detailed progress on the configuration restore process.
More information
Force configuration restore on page 562
cfg-restore verbose on page 566
Use cases
•
A user can switch to a new configuration without rebooting the switch.
•
If a user loses connectivity after applying the new configuration, a job scheduler executes the job after a
specific time frame. This restores the current configuration to the switch, without rebooting it.
More information
Switching to a new configuration on page 555
Rolling back to a stable configuration using job scheduler on page 556
554
Configuration backup and restore without reboot
Aruba 2930F / 2930M Management and Configuration Guide
Chapter 15
for ArubaOS-Switch 16.08
Table of Contents
Troubleshooting
