Cisco Systems Cisco IOS XR manual Rolling Back the Configuration to a Specific Rollback Point

Chapter 5 Configuring Additional Router Features

Managing Configuration History and Rollback

Rolling Back the Configuration to a Specific Rollback Point

When you roll back the configuration to a specific rollback point, you undo all configuration changes made during the session identified by the commit ID for that rollback point, and you undo all configuration changes made after that point. The rollback process rolls back the configuration and commits the rolled-back configuration. The rollback process also creates a new rollback point so that you can roll back the configuration to 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 the router configuration to a previously committed configuration, go to EXEC or administration EXEC mode and enter the rollback configuration to commitId command:

RP/0/RP1/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 commitID 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/RP0/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.

Cisco IOS XR Getting Started Guide

5-6 OL-10957-02