Installation guide

loopback test still fail?
Does the external
Does the external
loopback test
report an error?
Does the Ethernet
work properly now?
WS33P021
Reattach the system to the
external loopback test.
connection . Repeat the
Check the Ethernet
that reported the error?
Is ext or ni/ext the test
(continued)
No
Run the external loopback
Press return.
Replace the Ethernet
controller in the slot number
listed in the error message.
test. Type t
slot_number/
ext-lib.
No
network.
No
End
End
End
Yes
Replace the Ethernet
controller that has the error
slot number listed in the
error message.
Yes
Yes
Yes
No
Replace Ethernet
connection parts, such as
the cable and adapter, to
isolate the bad part.
Involve other resources as
necessary to resolve the
problem.
Figure 2-18 Troubleshooting an Ethernet
controller, 2 of 2
TROUBLESHOOTING TOOLS 2–35