Installation guide

Cisco 4500-M and Cisco 4700-M ROM Monitor F-5

Entering the ROM Monitor Program

• meminfo—Displays the size in bytes, the starting address, the available range of the

main memory, the starting point and size of packet memory, and the size of nonvolatile

random-access memory (NVRAM).

rommon 9 > meminfo

Main memory size: 8 MB. Packet memory size: 4 MB

Available main memory starts at 0xa000e001, size 0x7f1fff

Packet memory starts at 0xa8000000

NVRAM size: 0x20000

Conﬁguration Register

The conﬁguration register resides in NVRAM. The conﬁguration register is identical in

operation to other Cisco routers. Enter the confreg command for the menu-driven system,

or enter the new value of the register in hexadecimal.

Note The value is always interpreted as hex. The confreg command will print a before and

after view of the conﬁguration register when used in menu-driven mode.

• confreg [hexnum]—Executing the confreg command with the argument hexnum will

change the virtual conﬁguration register to match the hex number speciﬁed. Without the

argument, confreg will dump the contents of the virtual conﬁguration register in

English and allow the user to alter the contents. The user is prompted to change or keep

the information held in each bit of the virtual conﬁguration register. In either case the

new virtual conﬁguration register value is written into NVRAM and does not take effect

until the user resets or power cycles the platform.

For example:

rommon 7 > confreg

Configuration Summary

enabled are:

console baud: 9600

boot: the ROM Monitor