Cisco CRS-1 - Carrier Routing System Router Getting Started Manual page 213

Appendix A ROM Monitor Guide
DETAILED STEPS
Command or Action
Step 1 Verify the router is in a steady state, as described in the
"Prerequisites" section on page
Step 2 Connect a terminal to the primary RP console port and log
into the router.
Step 3 configure
Example:
RP/0/RP0/CPU0:router# configure
Step 4 config-register 0x0
Example:
RP/0/RP0/CPU0:router(config)# config-register 0x0
Step 5 commit
Example:
RP/0/RP0/CPU0:router(config)# commit
Step 6 no config-register 0x0
Example:
RP/0/RP0/CPU0:router(config)# no config-register 0x0
Step 7 commit
Example:
RP/0/RP0/CPU0:router(config)# commit
A-2.
Cisco CRS-1 Series Carrier Routing System Getting Started Guide
Purpose
Ensures that all configurations are saved, and that no
install processes are running.
Connects a terminal or PC to the primary RP console
port and establishes a router management session.
See the "Connecting and Communicating with
•
the Router" section on page 2-1
information on connecting a terminal.
Enters global configuration mode.
Resets the configuration register to 0x0 in the
running configuration.
See the "Setting Configuration Register Values"
•
section on page A-6 for more information.
Resetting the configuration register may
Caution
change the baud rate for the console.
Setting the configuration register to 0x0
Note
causes the system to enter ROM monitor
mode during a reload.
Saves the changes to the running configuration.
You must commit the setting and enter the
Caution
no config-register 0x0 command for the
settings to take effect. Refer to DDTS
CSCec84700 for more information on this
requirement.
Prevents unwanted changes to the configuration
register at a later point, and guarantees the setting is
the same between the Cisco IOS XR software and
the ROM monitor of the Cisco CRS-1 router.
Refer to DDTS CSCec84700 for more
Note
information on this requirement.
Saves the changes to the running configuration.
Entering ROM Monitor Mode
for more
A-3