Ethernet Port Name

I have a new Sun 440 and I am trying to configure it. Non of the Ethernet ports are enabled; when I issue "ifconfig -a" it returns nothing. Is there a way to know the available port name (e.g. ce, bge, etc.) by running a command or so ?

ifconfig -a plumb
ifconfig -a

I think the motherboard ports may be eri0 and eri1, look at the output from dmesg and see if any network type device names appear in that?

grep -i network /etc/path_to_install
check whats the interface its using

if you are on solaris 10, use "dladm show-dev" to know all interfaces.