Migrating to a Cisco CRS-3 Carrier Routing
System
This chapter describes how to migrate a single-chassis Cisco CRS-1 Carrier Routing System to a
single-chassis Cisco CRS-3 Carrier Routing System.
For an introduction to the single-chassis Cisco CRS-3 Carrier Routing System, see Cisco CRS Carrier
Note
Routing System 16-Slot Line Card Chassis System Description. For information on planning a
single-chassis Cisco CRS-3 Carrier Routing System system installation, see Cisco CRS Carrier Routing
System 16-Slot Line Card Chassis Site Planning Guide.
Feature History for the Cisco CRS-3 Carrier Routing System
Release
Release 4.0.0.T
Release 4.0.1
Release 4.0.2
Contents
This chapter contains the following sections:
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OL-13669-03
Modification
The single-chassis Cisco CRS-3 Carrier Routing System was introduced.
The single-chassis Cisco CRS-3 Carrier Routing System adds support for
100GE interfaces.
Multishelf Cisco CRS-3 Carrier Routing System operation is supported and
multishelf Cisco CRS-1 Carrier Routing System to multishelf Cisco CRS-3
Carrier Routing System migration is supported.
CRS-1 to CRS-3 Software Migration Compatibility Matrix, page 1-2
Prerequisites for Upgrading IOS-XR Software Prior to Migrating to a Cisco CRS-3 Carrier Routing
System, page 1-3
Cisco IOS-XR Flash Disk Requirements for Migration to CRS-3, page 1-5
File System Upgrade Procedure for 2GB Flash Disks, page 1-7
IOS-XR Software Upgrade Procedure, page 1-9
Upgrading to Cisco IOS XR Software Release 4.0.X(PX) Before Migrating to Cisco CRS-3
Hardware, page 1-14
Cisco CRS-1 Carrier Routing System to Cisco CRS-3 Carrier Routing System Migration Guide
1
C H A P T E R
1-1
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