Cisco Systems Cisco 12816 Manuale Utente

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Cisco 12016, Cisco 12416, and Cisco 12816 Router Installation and Configuration Guide
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Chapter 4      System Startup and Basic Configuration
Manually Booting the System
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 
network environment. For configuration information, see the 
.
Note
The interface-specific LEDs on the line cards may not power on until you 
configure the line card interfaces. To verify correct operation of each line card 
interface, complete the first-time setup procedure and configuration, then check 
the status of the interfaces against the descriptions in the documentation for each 
line card.
If the system does not complete each of the preceding steps, go to the 
 chapter for troubleshooting recommendations 
and procedures.
Manually Booting the System
If your router does not find a valid system image, or if you interrupt the boot 
sequence, the system enters ROM monitor mode and displays the ROM monitor 
prompt (rommon>). From ROM monitor mode, you have access to commands 
which locate and boot a valid system image.