Hi JM,
you are welcome. below are the pcib-probe-list description,
i get it from sunsolve.
By manufacturing default, the Sun Netra t1 Server OBP env parameter pcib-probe-list was set to 1,2 which means that only devices 1 and 2 on the bus are probed and enabled. Thus, only the ebus and the first ethernet device are enabled. The second ethernet port device, 3, becomes disabled by default.
regards
fissa