Cisco XR 12406 - Manual (Page 123)

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Cisco XR 12406 Router Installation Guide
OL-13831-01
Chapter 3 Installing the Cisco XR 12406 Router
External Network Interface
If the router does not power on, or if any interfaces do not initialize properly, see
Chapter 4, “Troubleshooting the Installation” . If you are still unable to resolve the
problem, contact your Cisco service representative for assistance.
External Network Interface
After configuration, the RP and line cards can communicate with external
networks.
You do not need to configure the network interfaces immediately, but you cannot
connect to a network until you configure the interfaces for operation in your
networking environment.
Note The interface-specific LEDs on the line cards go on when the line card interfaces
are configured.
To verify correct operation of each line card interface, complete the first-time
setup procedures and configuration, then check the status of the interfaces against
the LED descriptions in the configuration notes for each line card.
If the system does not complete each of the boot process steps, go to Chapter 4,
“Troubleshooting the Installation” .
Manually Booting the System
If your router does not find a valid system configuration image, or if you interrupt
the boot sequence, the system might enter read-only memory (ROM) monitor
mode and display the ROM monitor prompt (rommon>). From ROM monitor
mode, you have access to a number of commands to locate and boot a valid system
image.
Boot Process Overview
The example below assumes that the router is plugged into a power source and the
router is running, blower module fans are audible, and alarm card ENABLED
LEDs are lit up.