Cisco CRS-1 - Carrier Routing System Router Getting Started Guide

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Cisco CRS-1 Series Carrier Routing System Getting Started Guide
Chapter 6 Managing Cisco IOS XR Software Packages
Overview of Software Packages
The format for single package PIEs is:
platform-package_type.-p.pie-major.minor.maintenance
The filename components are described in Table 6-3.
Software Maintenance Update PIE Filenames and Version Numbers
A SMU is a PIE file that contains fixes for a specific defect. A composite SMU is a PIE file that contains
SMUs for more than one package. SMUs are installed using the same procedures as other .pie files.
SMUs are created to respond to immediate issues and do not include new features. Typically SMUs do
not have a large impact on router operations. SMU versions are synchronized to the package major,
minor, and maintenance version they upgrade.
minor Identifies the minor release of this package.
• A minor release contains one or more of the
following:
– Major new features
– Minor new features
– Bug fixes
• The minor release version does not have to be
identical for all software packages operating
on the router, but the operating packages must
be certified by Cisco as compatible with each
other.
• A minor release may require a router reboot.
maintenance Identifies the maintenance release of this package.
• A maintenance release contains a collection
of bug fixes for a package.
• A maintenance release incorporates any
intermediate SMUs for that package.
• The maintenance release version does not
have to be identical for all software packages
operating on the router, but the major and
minor versions of the maintenance release
must match the those of the package being
updated.
• A maintenance release does not require a
router reboot.
Table 6-3 Composite and Single Package Filename Components (continued)
Component Description

Cisco CRS-1 - Carrier Routing System Router Specifications

General

Brand	Cisco
Model	CRS-1 - Carrier Routing System Router
Category	Network Router
Language	English