Sun Microsystems SPARCstation 20, Service Manual

Page: 249 / 266

Appendix E Selected On-Board Diagnostics 225
Note – Selecting a specific Ethernet interface to monitor may be controlled through
these user-specific commands:
watch-tpe
monitors the TPE connection;
watch-
aui
monitors the thick Ethernet connection;
watch-net-all
monitors Ethernet
packets on all installed Ethernet interfaces, one at a time
The
watch-net-all
command monitors Ethernet packets on all Ethernet interfaces
installed in the system, one at a time. For example, if an SBus Ethernet card is
installed in one of the system SBus slots,
watch-net-all
monitors the Ethernet
transmissions detected by that card.
CODE EXAMPLE E-5 watch-tpe
Command Output Message
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.
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