Sun NetraT 105 - What to do when the second ethernet port fails?

This was actually a goof in the firmware. When it was updated, it changed values in prom that should have been left alone. Here is how to fix it

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If for some reason the 2nd Ethernet is disabled through show-nets,
This is the procedure to fix:

Ok>printenv
This will show the listing of current and default values for obp
If the current value of pcib-probe-list is 1,2 it needs to be changed
Ok>setenv pcib-probe-list 1,2,3
Ok>reset-all
Ok>show-nets
Ok>watch-net-all (To test ports)

That should do it.