Allied Telesis AT-2972T/2 - Manual (Page 73)

AT-29xx Series Gigabit Ethernet Network Adapters Installation Guide
73
Although tg3 is a fully functioning driver, Allied Telesis recommends that
you use the newer tg3 driver provided by Allied Telesis. Use ifconfig to
bring down all eth# interfaces used by tg3 and enter the following
command to unload the tg3 driver:
rmmod tg3
For more detailed Linux specific information on ifconfig, rmmod, or
modules.conf, refer to the respective man pages.