Allied Telesis AT-2972T/2 - Manual (Page 98)

Installing the Boot Agent Driver Software
98
In this version, it prompts you to insert a driver disk for drivers that are not
part of the standard distribution. You can create a driver disk for the
adapter from the image distributed on the Allied Telesis CD-ROM.
A remote boot does not require a standard Linux network driver for the
adapter. After the PXE client downloads the Linux kernel and initial ram
disk, the Linux universal driver that came with the Linux distribution binds
with the UNDI code of the PXE to form a Linux network driver.