Rom Monitor - Cisco Catalyst 2000 Configuration Handbook

(the clear-text enable password must be entered) is used for authentication. You
should use one of the stronger authentication methods: aaa, local (authentication
is performed locally on the switch, using usernames and passwords), and tacacs
(standard or extended TACACS authentication).
e. View the switch's home page.
From a web browser, use the URL http://switch/, where switch can be the
switch's IP address or hostname. The default switch home page is available to
users with a privilege level of 15. Only IOS commands available to lesser-privi-
lege levels are available to those users limited to a privilege level less than 15.

1-2: ROM Monitor

■ The ROM monitor is a ROM-based program that is executed on power up or reset of
the switch.
The ROM monitor interface can be accessed if the user presses Ctrl-Break during
■
the boot process.
If the switch fails to load an operating system or if the value of 0 is specified in the
■
BOOT field of the configuration register, the switch enters ROM monitor mode.
■ If the switch encounters a fatal exception from which it cannot recover, it enters
ROM monitor mode.
Like the Cisco IOS Software interfaces, ROM monitor is a CLI.
■
ROM monitor offers a limited number of commands associated with booting recov-
■
ery of the switch.
ROM monitor offers a limited help facility and basic history functions to aid users.
■
ROM monitor allows for Xmodem asynchronous transfers to aid in the recovery of
■
IOS.
Using the ROM Monitor Command Set
Many switches have a ROM monitor command set that enables the user to interact with
the switch to recover operating systems or alter boot variables during the boot process.
The ROM monitor has a basic set of commands and a help facility to aid the user. The
following steps outline the use of the ROM monitor facility.
User interface modes:
1.
rommon>
The rommon interface is a simple CLI that enables users to recover from fatal errors
or change the boot parameters of the switch. It offers a single mode with a limited
set of commands typically associated with booting the switch and managing envi-
ronment parameters.
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Chapter 1: CLI Usage 9