if you have configured a new switch with a wrong ip address, or all the switch leds start blinking when you are trying to enter express setup mode, you can clear the ip address that is configured on the switch.

    this procedure will clear the ip address and all configuration information stored on the switch. do not follow this procedure unless you want to completely reconfigure the switch.

    to clear the ip address and the switch configuration information, follow these steps:

    step 1 press and hold the mode button, as shown in figure 1-4 on page 1-5.

    the switch leds begin blinking after about 2 seconds.

    if the switch is not configured, the mode buttons are all green. you can omit step 2 and run express setup to configure the switch.

    step 2 continue holding down the mode button. the leds stop blinking after 8 additional seconds, and then the switch reboots.

    these steps only work on a previously-configured switch.

    the switch now behaves like an unconfigured switch. you can configure the switch by using express setup as described in these sections.

    1?"starting express setup"?section on page 1-4

    2?"configuring the switch settings"?section on page 1-9

    3?"verifying switch ip address (optional)"?section on page 1-10 you can also configure the switch by using the command-line interface (cli) setup procedure described in these sections:

    4?"starting the terminal emulation software"?section on page d-9

    5?"entering the initial configuration information"?section on page d-10