Cisco ASR 9000 User Manual

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Cisco ASR 9000 Series Aggregation Services Router Getting Started Guide
OL-28417-02
Chapter Configuring Additional Router Features
Managing Configuration History and Rollback
Previewing Rollback Configuration Changes
The show configuration rollback changes command allows you to preview the configuration changes
that take place if you roll back the configuration to a specific commit ID. For example, if you want to
roll back the configuration to a specific point, all configuration changes made after that point must be
undone. This rollback process is often accomplished by executing the no version of commands that must
be undone.
To display the prospective rollback configuration changes from the current configuration to a specific
commit ID, go to EXEC or administration EXEC mode and enter the show configuration rollback
changes to commit ID command. In the following example, the command help displays the available
commit IDs, and then the rollback changes are displayed:
RP/0/RSP1/CPU0:router# show configuration rollback changes to ?
1000000217 Commit ID
1000000218 Commit ID
1000000219 Commit ID
RP/0/RSP1/CPU0:router# show configuration rollback changes to 1000000218
Building configuration...
no interface Loopback100
interface Gi0/1/0/0
no ipv4 nd dad attempts
!
!
no route-policy xx
end
To display the prospective rollback configuration changes from the current configuration to a specified
number of previous sessions, go to EXEC or administration EXEC mode and enter the show
configuration rollback changes last commit-range command:
RP/0/RSP1/CPU0:router# show configuration rollback changes last 2
Building configuration...
interface Loopback3
no description
no ipv4 address 10.0.1.1 255.0.0.0
exit
interface Loopback4
no description
no ipv4 address 10.0.0.1 255.0.0.0
end
In the preceding example, the command display shows the proposed rollback configuration changes for
the last two commit IDs.
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.

Cisco ASR 9000 Specifications

General

Brand	Cisco
Model	ASR 9000
Category	Network Router
Language	English