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Catalyst 6500 Series Switch Command Reference—Release8.4
OL-6244-01
Chapter2 Catalyst 6500 Series Switch and ROM Monitor Commands ROM Monitor CLI
For example:
_1300_
matches any string that has 1300 somewhere in the string. The string’s 1300 can be preceded by or end
with a space, brace, or comma. For example:
{1300- or {1300:
matches the regular expression, but 21300 and 13000 do not.
Using the underscore character, you can replace long regular expression lists, such as the following:
^1300$ ^1300(space) (space)1300 {1300, ,1300, {1300} ,1300, (1300
with
_1300_
ROM Monitor CLI
The ROM monitor is a ROM-based program that executes upon platform startup, reset, or when a fatal
exception occurs.

Accessing the ROM Monitor CLI

The system enters ROM-monitor mode if the switch does not find a valid system image, if the NVRAM
configuration is corrupted, or if the configuration register is set to enter ROM-monitor mode. From the
ROM-monitor mode, you can load a system image manually from Flash memory, from a network server
file, or from bootflash. You can also enter ROM-monitor mode by restarting the switch and pressing the
Break key during the first 60 seconds of startup.
Note Break is always enabled for 60 seconds after rebooting the system, regardless of whether Break is
configured to be off by configuration register settings.
To connect through a terminal server, escape to the Telnet prompt, and enter the send break command
to break back to the ROM-monitor mode.

Operating the ROM Monitor CLI

The ROM monitor commands are used to load and copy system images, microcode images, and
configuration files. System images contain the system software. Microcode images contain microcode
to be downloaded to various hardware devices. Configuration files contain commands to customize
Catalyst 6500 series software.