Appendix C Using The Rom Monitor; Command Descriptions - Cisco 2431 - IAD Router Software Configuration Manual

Appendix C Using the ROM Monitor
dev
dir
dis
frame
help
history
iomemset
meminfo
repeat
reset
rommon-pref
set
showmon
stack
sync
sysret
tftpdnld
unalias
unset
xmodem
rommon 1 >
Commands are case sensitive. You can halt any command by pressing the Break key on a terminal. If
you are using a PC, most terminal emulation programs halt a command when you press the Ctrl and the
Break keys at the same time. If you are using another type of terminal emulator or terminal emulation
software, see the documentation for that product for information on how to send a Break command.

Command Descriptions

Table C-1
Table C-1
Command
help or ?
-?
reset or i
OL-4306-03
List the device table
List files in directories-dir <directory>
display instruction stream
print out a selected stack frame
monitor builtin command help
monitor command history
Set IO memory percent
main memory information
repeat a monitor command
system reset
Select ROMMON
display the monitor variables
Display currently selected ROM monitor
produce a stack trace
write monitor environment to NVRAM
print out info from last system return
tftp image download
unset an alias
unset a monitor variable
x/ymodem image download
describes the most commonly used ROM monitor commands.
Commonly Used ROM Monitor Commands
Description
Displays a summary of all available ROM monitor commands.
Displays information about command syntax; for example:
rommon 16 > dis -?
usage : dis [addr] [length]
The output for this command is slightly different for the xmodem download
command:
rommon 11 > xmodem -?
xmodem: illegal option -- ?
usage: xmodem [-cyrxu] <destination filename>
-c CRC-16
-y ymodem-batch protocol
-r copy image to dram for launch
-x do not launch on download completion
-u upgrade ROMMON, System will reboot after upgrade
Resets and initializes the router, similar to a power up.
Cisco IAD2430 Series Integrated Access Devices Software Configuration Guide
ROM Monitor Commands
C-3