Network Router User Manual

B-6
Cisco 2600 Series Routers Hardware Installation Guide
OL-2171-06
Appendix B Using the ROM Monitor
ROM Monitor Command Descriptions
meminfo [-l]—The meminfo command with the -l option shows supported DRAM configurations. The
following example shows an example of the meminfo -l command:
rommon 10> meminfo -l
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
Other Useful ROM Monitor Commands
reset or i—Resets and initializes the router, similar to power on.
tftpdnld—(Except Cisco 2691) Downloads an image using TFTP from a remote server. See the
“Copying an Image from a TFTP Server Using the tftpdnld Command” procedure on page B-10.
Debugging Commands
Most debugging commands are functional only when Cisco IOS software has crashed or failed to
initialize (boot). Debugging commands should normally be entered only under the direction of a Cisco
engineer. If you enter a debugging command and Cisco IOS crash information is not available, the
following error message appears:
“xxx: kernel context state is invalid, cannot proceed.”
The following ROM monitor debugging commands provide information about software failures:
• stack or k—Produces a stack trace.
• context—Views processor context.
• frame—Views an individual stack frame.