Cisco ASR 9000 Series

CHAPTER 4
Upgrading and Managing Cisco IOS XR Software
Cisco IOS XR software is divided into software packages so that you can select which features run on your
router. This module describes the concepts and tasks necessary to add feature packages, upgrade the active
set of packages, roll back to a previously active set of packages, and perform other related package
management tasks.
For complete descriptions of the commands listed in this module, see Related Documents, on page 72. To
locate documentation for other commands that might appear in the course of performing a configuration
task, search online in Cisco ASR 9000 Series Aggregation Services Router Commands Master List.
Table 5: Feature History for Upgrading and Managing Cisco IOS XR Software
ModificationRelease
The feature was introduced.Release 3.7.2
A procedure to upgrade software from Cisco IOS XR Release 3.x was introduced.
See Upgrading to Cisco IOS XR Software Release 4.0, on page 58.
Support for installation commands was removed from EXEC mode.
The ability to install software on a specific SDR was removed.
Release 4.0.0
This module contains the following topics:
•
Overview of Cisco IOS XR Software Packages, page 20
•
Information About Package Management, page 25
•
Package Management Procedures, page 34
•
Rolling Back to a Previous Software Set, page 69
•
Additional References, page 72
Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide, Release 5.1.x
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