C-4
Software Configuration Guide for Cisco 2600 Series, Cisco 3600 Series, and Cisco 3700 Series Routers
OL-1957-03
Appendix C Using the ROM Monitor
Entering the ROM Monitor Mode
Supported memory configurations:
DIMM 0 DIMM 1
-------------------
4M
8M-DUAL
16M
32M-DUAL
4M
4M 4M
4M 8M-DUAL
4M 16M
4M 32M-DUAL
8M-DUAL
8M-DUAL 4M
8M-DUAL 8M-DUAL
8M-DUAL 16M
8M-DUAL 32M-DUAL
16M
16M 4M
16M 8M-DUAL
16M 16M
16M 32M-DUAL
32M-DUAL
32M-DUAL 4M
32M-DUAL 8M-DUAL
32M-DUAL 16M
32M-DUAL 32M-DUAL
•
reset or i—Reset and initialize the router, similar to power on.
•
tftpdnld—Download an image using Trivial File Transfer Protocol (TFTP) from a remote server.
•
show rom-monitor— Shows version of read-only ROMMON, and if present, the upgrade version
of ROMMON. It also shows the current version of ROMMON which version will be selected for
execution when the Cisco IOS software is booted again. This command isavailable in the Cisco IOS
exec mode.
–
showmon—Available in the ROMMON command mode. Provides the same information as the
show rom-monitor command in the Cisco IOS exec mode.
•
upgrade rom-monitor <file<URL>|preference<readonly|upgrade>>—Installs and reloads a new
version of ROMMON in the Cisco IOS exec mode. URL refers to the path where the new ROMMON
image is stored. Prompts the user to save the configuration.
–
upgrade rom-monitor preference<readonly|upgrade>—Selects the version of ROMMON to
be loaded the next time the router is reloaded. This command is used in the Cisco IOS exec
mode.
–
rommon-pref—Used in ROMMON command mode. Provides the same information as
upgrade rom-monitor preference command in the Cisco IOS exec mode.
Note
The commands show rom-monitor, showmon, upgrade rom-monitor , upgrade rom-monitor
preference, rommon-pref present in the Cisco 3700 series routers only. The command tftpdnld is
present in the Cisco 2600 series routers only.