reboot and boot from network

Hello,

Does any one know any command which reboot the system and select as boot device the network.
I give bootnet to many servers at once and i want to avoid opening ILOM and select as boot device the network.
Can i do it by just executing a command?

Thanks in advance

The boot process is controlled by the BIOS, not the OS.

So i suppose that the only solution is a script which sends commands to ILOM.
Thanks for your reply