Recovering From Start-Up Failure; Using Maintenance Mode - Intel Express 520T User Manual

C H A P T E R 7
Network boot process
Purpose
108
Console Port Use and Troubleshooting

Recovering from Start-up Failure

The network boot process is as follows:
1. The switch sends a BOOTP request over the network.
Intel Express ®
520T Switch
The boot request contains the switch's MAC address. The boot
server contains a bootptab file with an entry for the switch which
is defined by the MAC address.
2. If a boot server which holds the software for the switch receives
the boot request, it loads the boot software over the network to
the destination MAC address.
Intel Express ®
520T Switch

Using Maintenance Mode

Maintenance Mode offers three facilities:
It allows you to force the switch to load a specified software file
•
from any specified TFTP server.
• It provides an emergency facility to force boot the switch from a
specified boot server if the switch cannot boot from Flash Mem-
ory. From Maintenance Mode the switch is forced to issue a