3com 4800G Installation Instruction

Booting the Switch

Booting the Switch

Checking before

Power-On

Before powering on the switch, verify that:

■

The power cable and grounding cable are properly connected.

■

The power supply voltage is consistent with that required by the switch.

■

The console cable is properly connected; the terminal (which can be a PC) used
for configuration has been started; and the configuration parameters have
been set.

Powering On the Switch

The Switch 4800G have the same Boot ROM display style. This document uses the
Boot ROM display of Switch 4800G 48-Port as an example:

Starting......

***********************************************************

3Com Switch 4800G 48-Port BOOTROM, Version 205 *

***********************************************************

Creation date

: May 28 2007, 15:36:08

CPU Clock Speed : 533MHz

BUS Clock Speed : 133MHz

Memory Size

: 256MB

Mac Address

: 00e0fc005502

Press Ctrl-B to enter Boot Menu... 0

The last line asks whether you want to enter the Boot Menu. The system waits two
seconds for your response.

■

The system has two startup modes: normal startup and fast startup. The
normal startup mode takes a little longer time than the fast startup mode
because of more self-test operations.

■

By default, the system starts up in fast mode and the waiting time here is two
seconds. If you set the startup mode to normal, the waiting time is five
seconds. For the setting of the startup mode, refer to the next section.

■

If you press Ctrl + B within two seconds, the Boot Menu is displayed:

BOOT

1. Download application file to flash

2. Select application file to boot

3. Display all files in flash

4. Delete file from flash

5. Modify bootrom password

6. Enter bootrom upgrade menu

7. Skip current configuration file

8. Set bootrom password recovery

9. Set switch startup mode

0. Reboot

Enter your choice(0-9):

Table 15 describes the fields above.