Sun Microsystems Enterprise 250 Owner's Manual page 273

Note – Some hub designs permanently enable (or disable) the link integrity test
through a hardware jumper. In this case, refer to the hub installation or user manual
for details of how the test is implemented.
Determining the Device Name of the Ethernet Interface
To enable or disable the link integrity test for the standard Ethernet interface, or for
a PCI-based Ethernet interface, you must first know the device name of the desired
Ethernet interface. To list the device name:
1. Shut down the operating system and take the system to the ok prompt.
2. Determine the device name for the desired Ethernet interface:
a. Type:
ok show-devs
b. In the show-devs listing, find the device name for the desired Ethernet
interface.
The device name is /pci@1f,4000/network@1,1 for the standard Ethernet
interface. For a PCI-based Ethernet interface, the device name may appear similar
to the following: /pci@1f,4000/pci@5/SUNW,hme@0,1
Solution 1
Use this method while the operating system is running:
1. Become superuser.
2. Type:
# eeprom nvramrc="probe-all install-console banner apply
disable-link-pulse device-name"
(Repeat for any additional device names.)
# eeprom "use-nvramrc?"=true
3. Reboot the system (when convenient) to make the changes effective.
Chapter 11 Diagnostics and Troubleshooting 255