Sun Microsystems SPARCclassic Service Manual page 191

The AUI port is first tested by transmitting packets and checking for No Carrier or
response packets. If the AUI test fails, the TPE port is then tested.
Entering watch-net causes this automatic selection to take place. You may see these
messages:
ok watch-net
Internal loopback test -- succeeded.
External loopback test -- Auto-selecting Ethernet cable I/F
Trying AUI
AUI Carrier Loss
Trying TPE
Received packet on TPE
Select cable - TPE
succeeded
You may also control the selection of Ethernet interfaces to monitor by using specific
commands. Use watch-tpe to monitor the 10BaseT (TPE) connection or watch-aui to
monitor the 10Base5 (thicknet) connection.
For example:
ok watch-tpe
Internal loopback test -- succeeded.
External loopback test -- succeeded.
Looking for Ethernet packets.
'.' is a good packet. 'X' is a bad packet.
Type any key to stop.
...............................................................
The watch-net-all command monitors Ethernet packets on any Ethernet interface
installed in the system. For example, if you have an SBus Ethernet card installed in
one of the system SBus slots, watch-net-all will start by monitoring Ethernet
transmissions detected by that card.
When you interrupt the test on that interface by pressing any key, watch-net-all then
goes on to test the next Ethernet interface it finds in the system.
For example:
ok watch-net-all
/iommu@f,e0000000/sbus@f,e0001000/lebuffer@1,40000/le@1,60000
Internal loopback test -- succeeded.
External loopback test -- succeeded.
Looking for Ethernet packets.
'.' is a good packet. 'X' is a bad packet.
Type any key to stop.
...................................................................................(keyboard key pressed h
/iommu@f,e0000000/sbus@f,e0001000/ledma@f,400010/le@f,c00000
Internal loopback test -- succeeded.
External loopback test -- succeeded.
Looking for Ethernet packets.
'.' is a good packet. 'X' is a bad packet.
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On-Board Diagnostics