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Cisco 3600 Series Routers Hardware Installation Guide
OL-2056-05
Appendix B Using the ROM Monitor
ROM Monitor Syntax Conventions
dev list the device table
dir list files in the file system
dis display instruction stream
dnld serial download a program module
frame print out a selected stack frame
help monitor builtin command help
history monitor command history
iomemdef set IO mem to a default 25%
meminfo main memory information
repeat repeat a monitor command
reset system reset
rommon-pref select ROMMON
set display the monitor variables
stack produce a stack trace
sync write monitor environment to NVRAM
sysret print out info from last system return
tftpdnld tftp image download
unalias unset an alias
unset unset a monitor variable
xmodem x/ymodem image download
rommon 2>
Note Not all ROM monitor commands are available on all platforms.
Displaying Information About ROM Monitor Command Syntax
To display information about command syntax, enter the command name followed by -?.
Entering ROM Monitor Commands
ROM monitor commands are case-sensitive. Enter commands exactly as shown.
Interrupting ROM Monitor Commands
You can end any command by generating a Break (system interrupt) at the console.
ROM Monitor Syntax Conventions
ROM monitor syntax in this appendix uses the following conventions:
• Square brackets [ ] denote an optional element. In the following example, the element abc is not
required, but you can specify it if you choose:
command [abc]
• If a minus option is followed by a colon (for example, [-s:]) you must provide an argument for the
option.
• A term in italics means that you must fill in the appropriate information. In the following example,
you replace the term in italics with the interface type you are using:
command interface-type