Appendix C On-Board Diagnostics C-5
For example:
SPARCclassic and SPARCstation LX systems have two types of on-board Ethernet
interfaces, 10BaseT (also called twisted-pair Ethernet or TPE) and 10Base5 (also
called thick Ethernet or AUI). Only one on-board interface may be connected at a
time. The system can automatically select which interface is connected and active.
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:
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.
ok watch-net
Internal loopback test -- succeeded.
External loopback test -- Auto-selecting Ethernet cable I/F
Trying AUI
Received packet on AUI
Select cable - AUI
succeeded.
Looking for Ethernet packets.
’.’ is a good packet. "X" is a bad packet.
Type any key to stop.
..............................................................................
...................................................................Framing
error CRC error X...................
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
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