Cisco WS-X4516-10GE-RF Hardware Maintenance Manual - Page 125
Display/Reset Virtual Configuration Register-The, Memory/Bus Diagnostic-The
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Entering the Cisco 4000-M ROM Monitor Program • Display/Reset Virtual Configuration Register-The o command displays the virtual configuration register. The o command used with the /r option will reset the configuration register to the default and cause the system software image to ignore the configuration register information (sets the ignore NVRAM contents bit, 0x0040). To reset to the default, enter the following at the > prompt: o/r Table C-1 lists additional o command options. Table C-1 Monitor Command o o/r o/r 0xvalue O Command Options Function Displays the virtual configuration register currently in effect, with a description of the bits Resets the virtual configuration register to the defaults as follows: 9600 baud console UART speed Break/abort has no effect Ignore the system configuration Boot from ROM Sets the virtual configuration register to the (hex) value, value Enter the i command after entering the o/r command to automatically reboot the router. Note To enable the router to read the configuration file in nonvolatile RAM, clear the ignore NVRAM contents bit (0x0040) with the config-register command after using the o/r command. • Memory/Bus Diagnostic-The t m command runs the memory test. By default, the memory test examines processor main memory. Caution It is good practice for you to save the configuration in a file on a host in your network as a backup before testing because the file could be lost. To test memory, enter the t command with the m option at the > prompt, as follows: t m To use the default addresses and select the default tests, press the Return key after each prompt displays. The time to run a diagnostic is memory size dependent. It will take a minimum of 10 minutes. If the program encounters memory problems, it will display appropriate error messages on the console terminal. Be sure to reinitialize the processor before booting the system by entering i at the ROM monitor prompt. Cisco 4000-M ROM Monitor C-3