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, be-
comes disabled by default. This only occurred in early shipments of 
Netra t1 Servers and was corrected for all subsequent shipments from 
Aug/11/99.

The above mentioned problem can be identified on a Sun Netra t1 Server
from the OK prompt, by typing 'show-devs', if the following error is
displayed:

          Unable to find `/pci@1f,0/pci@1,1/network@3,1'           

Correct the disabled second ethernet device, by following the 
recommendation as shown below:

    1. Log in as/su to root

    2. Type the following three lines:

    #eeprom pcib-probe-list=1,2,3
    #eeprom output-device=ttya
    #eeprom input-device=ttya

    3. Reboot
    
              

See Field Information notice # I0515-1 for more detail.