Other SDR Users 16
Designated Shelf Controller (DSC) 16
Default Configuration of the Router 16
Cisco IOS XR Software Package Management 16
Additional References 17
CHAPTER 4
Upgrading and Managing Cisco IOS XR Software 19
Overview of Cisco IOS XR Software Packages 20
Package Installation Envelopes 20
Summary of Cisco IOS XR Software Packages 21
Packages in the Cisco IOS XR Unicast Routing Core Bundle 21
Software Maintenance Upgrades 21
PIE Filenames and Version Numbers 22
Filename Component Description 22
Copying the PIE File to a Local Storage Device or Network Server 24
Information About Package Management 25
Summary of Package Management 25
Adding Packages 25
Verifying Package Details 26
Activating Packages 27
Activating Multiple Packages or SMUs 27
Activating All Packages Added in a Specific Operation 27
Adding and Activating a Package with a Single Command 27
Upgrading and Downgrading Packages 27
Committing the Active Software Set 28
Rolling Back to a Previous Installation Operation 28
Multiple Disks Support during Installations 28
Restrictions 28
Deactivation of fully superseded SMUs 29
Support for the Ignore Package Presence Check Option 29
Upgrading Packages 30
Downgrading Packages 30
Impact of Package Version Changes 31
Impact of Package Activation and Deactivation 31
Delaying the Return of the CLI Prompt 32
Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide, Release 5.1.x
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