Router Getting Started Guide

3-3
Cisco IOS XR Getting Started Guide
OL-10957-02
Chapter 3 Bringing Up the Cisco IOS XR Software on a Multishelf System
Information About Bringing Up a Multishelf System
Information About Bringing Up a Multishelf System
The following sections provide information that is good to know before you bring up a multishelf
system:
• Bringup Overview, page 3-3
• Preparing a Rack Number Plan, page 3-3
Bringup Overview
The bringup procedure for a multishelf system starts after the hardware installation is complete. The
bringup procedure tasks configure the system components to work together and verify the operation and
configuration of system components. To bring up the multishelf system, complete the following
procedures in the sequence shown:
1. Configuring the External Cisco Catalyst 6509 Switches, page 3-8
2. Bringing Up and Configuring Rack 0, page 3-28
3. Bringing Up and Verifying FCCs, page 3-34
4. Bringing Up and Verifying the Non-DSC LCC, page 3-37
5. Verifying the Spanning Tree, page 3-39
During the bringup procedure, you need the information presented in the following section.
Preparing a Rack Number Plan
In a multishelf system, each chassis must be assigned a unique rack number, as shown in Figure 3-1. This
rack number is used to identify a chassis in the system, and maintain the software and configurations for
the chassis.
Caution Failure to assign a unique rack number to each chassis in the system can result in serious system error
and potential downtime. Unique rack numbers must be assigned and committed on Rack 0 before the
additional chassis are powered on and brought on line.