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Cisco 2600 Series Routers Hardware Installation Guide
OL-2171-02
Appendix C Using the ROM Monitor
Command Descriptions
•
meminfo—Display size in bytes, starting address, available range of main memory, the starting
point and size of packet memory, and size of nonvolatile memory (NVRAM). The following
example shows the meminfo command:
rommon 9 > meminfo
Main memory size: 32 MB.
Available main memory starts at 0xa000e000, size 32704KB
IO (packet) memory size: 25 percent of main memory.
NVRAM size: 32KB
•
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
•
reset or i—Reset and initialize the router, similar to power on.
•
tftpdnld—Download an image using TFTP from a remote server.
Debugging Commands
Most debugging commands are functional only when Cisco IOS software has crashed or is ended. 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.”
•
stack or k—Produce a stack trace.
•
context—View processor context.
•
frame—View an individual stack frame.