Cisco Router IOS XR Getting Started Manual page 45

Chapter 3 Bringing Up the Cisco IOS XR Software on a Multishelf System
Figure 3-3
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Always assign a rack number to each chassis in the system before the chassis is booted. If a chassis is
Caution
not assigned a rack number, or if the rack number conflicts with an existing chassis, it may not be
recognized by the system or cause other operational difficulties.
If you cannot locate or read the chassis serial number on a chassis, you can view the serial number stored
in software as described in the following documents:
• To display the chassis serial numbers in administration EXEC mode, see Cisco IOS XR System
Management Configuration Guide, Release 3.4.
OL-10957-02
Location of the Serial Number on a Line Card Chassis
PWR
OK
FLT
AC
FAIL PWR
OK
CB FLT
TRIP
I AC
LIM FAIL PWR
OK
OT CB
TRIP FLT
I
LIM AC FAIL
OT CB
TRIP
I
LIM
OT
PWR
OK
FLT
AC PWR
FAIL OK
CB
TRIP FLT
I AC PWR
LIM FAIL OK
OT TRIP CB FLT
I AC
LIM FAIL
OT CB
TRIP
I
LIM
OT
Information About Bringing Up a Multishelf System
Cisco IOS XR Getting Started Guide
3-7