Impact of Package Version Changes
Each package version change has a different impact on the operation of the router, depending on the type of
package and whether the upgrade is for a major, minor, or maintenance release. The following resources can
provide more information on the impact of a package version change:
•
See Related Topics for more information on the typical impact for major, minor, and maintenance
releases.
•
For specific information about the impact of an upgrade, consult the release notes for the package release,
and test the impact of the package activation by adding the test option to the install activate command.
•
The Cisco IOS XR Software Selector tool also contains information on package version compatibility.
Related Topics
PIE Filenames and Version Numbers, on page 22
Obtaining and Placing Cisco IOS XR Software, on page 35
Impact of Package Activation and Deactivation
Activation or deactivation of a package can have an immediate impact on the system. The system can be
affected in the following ways:
•
When a new package is activated, any new CLI commands for the package are added to the router. The
router need not be restarted or reloaded.
•
When a package is deactivated, the commands associated with the features being deactivated are removed
from the router. The commands are no longer available to the user.
•
During a software package deactivation, upgrade, or downgrade, any incompatible configurations are
removed from the running configuration of the router, and saved to a file. Messages for incompatible
configurations are displayed. Incompatible configurations are those configurations that are not supported
by the new version of the software package.
You must address any issues that result from the revised configuration and reapply the configuration, if
necessary.
Note
•
New processes may be started.
•
Running processes may be stopped or restarted.
•
All processes in the cards may be restarted. Restarting processes in the cards is equivalent to a soft reset.
•
The cards may reload.
•
No impact: no processes in the card may be affected.
Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide, Release 5.1.x
31
Upgrading and Managing Cisco IOS XR Software
Impact of Package Version Changes
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