Cisco Systems OL-14361-01 manual Managing Configuration History and Rollback, 108

Chapter 5 Configuring Additional Router Features

Managing Configuration History and Rollback

Examples

In the following example, the host services are enabled:

RP/0/RP0/CPU0:router# configure

RP/0/RP0/CPU0:router(config)# telnet ipv6 server max-servers 5

RP/0/RP0/CPU0:router(config)# http server

RP/0/RP0/CPU0:router(config)# xml agent corba

RP/0/RP0/CPU0:router(config)# commit

Related Documents

Related Topic	Document Title
Installation and activation of the Manageability and	Upgrading and Managing Cisco IOS XR Software module of Cisco
Security Packages	IOS XR System Management Configuration Guide
Descriptions of the HTTP and XML server commands	Manageability Commands on Cisco IOS XR Software module of
	Cisco IOS XR System Management Command Reference
Descriptions of the Telnet commands	Host Services and Applications Commands on Cisco IOS XR
	Software module of Cisco IOS XR IP Addresses and Services
	Command Reference

Managing Configuration History and Rollback

After each commit operation, a record of the committed configuration changes is saved. This record contains only the changes made during the configuration session; it does not contain the complete configuration. Each record is assigned a unique ID, known as a commitID.

When multiple commitIDs are present, you can use a commitID to identify a previous configuration to which you want to return, or you can use the commitID to load the configuration changes made during that configuration session. You can also load configuration changes from multiple commitIDs, and you can clear commitIDs. If you are thinking about rolling back the configuration to a specific commitID, consider the following guidelines:

•You cannot roll back to a configuration that was removed because of package incompatibility. Configuration rollbacks can succeed only when the configuration passes all compatibility checks with the currently active Cisco IOS XR software.

•If an incompatible configuration is found during the rollback operation, the operation fails and an error is displayed.

The Cisco IOS XR software automatically saves up to 100 of the most recent commitIDs. The following sections describe how to manage configuration changes and roll back to a previously committed configuration:

•Displaying the CommitIDs, page 5-109

•Displaying the Configuration Changes Recorded in a CommitID, page 5-109

•Previewing Rollback Configuration Changes, page 5-110

•Rolling Back the Configuration to a Specific Rollback Point, page 5-110

•Rolling Back the Configuration over a Specified Number of Commits, page 5-111

•Loading CommitID Configuration Changes to the Target Configuration, page 5-111

	Cisco IOS XR Getting Started Guide
5-108	OL-14361-01