Cisco XR 12000 Series Getting Started Guide

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Cisco IOS XR Getting Started Guide for the Cisco XR 12000 Series Router
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Chapter 4 Configuring Additional Router Features
Managing Configuration History and Rollback
Tip To preview the commands that undo the configuration during a rollback, use the show configuration
rollback changes command.
To roll back the router configuration to a previously committed configuration, go to EXEC or
administration EXEC mode and enter the rollback configuration to commit ID command:
RP/0/0/CPU0:router# rollback configuration to 1000000220
Loading Rollback Changes.
Loaded Rollback Changes in 1 sec
Committing.
2 items committed in 1 sec (1)items/sec
Updating.
Updated Commit database in 1 sec
Configuration successfully rolled back to '1000000220'.
Rolling Back the Configuration over a Specified Number of Commits
When you roll back the configuration over a specific number of commits, you do not have to enter a
specific commit ID. Instead, you specify a number x, and the software undoes all configuration changes
made in the last x committed configuration sessions. The rollback process rolls back the configuration,
commits the rolled-back configuration, and creates a new commit ID for the previous configuration.
Tip To preview the commands that undo the configuration during a rollback, use the show configuration
rollback changes command.
To roll back to the last x commits made, go to EXEC or administration EXEC mode and enter the
rollback configuration last x command; x is a number ranging from 1 to the number of saved commits
in the commit database.
In the following example, a request is made to roll back the configuration changes made during the
previous two commits:
RP/0/0/CPU0:router# rollback configuration last 2
Loading Rollback Changes.
Loaded Rollback Changes in 1 sec
Committing.
1 items committed in 1 sec (0)items/sec
Updating.
Updated Commit database in 1 sec
Configuration successfully rolled back 2 commits.
Loading Commit ID Configuration Changes to the Target Configuration
If the changes saved for a specific commit ID are close to what you want, but a rollback is not
appropriate, you can load the configuration changes for a commit ID into the target configuration,
modify the target configuration, and then commit the new configuration. Unlike the rollback process, the
loaded changes are not applied until you commit them.

Cisco XR 12000 Series Specifications

General

Brand	Cisco
Model	XR 12000 Series
Category	Network Router
Language	English