Impact Of Package Activation Or Deactivation On The Configuration Rollback - Cisco CRS-1 - Carrier Routing System Router Getting Started Manual

Chapter 2 Cisco IOS XR Basic Configuration Management
Impact of Software Package Activation and Deactivation

Impact of Package Activation or Deactivation on the Configuration Rollback

You cannot roll back to a configuration that was removed because of a 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.
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
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