Sun Microsystems Ultra 1 140, Service Manual

Page: 55 / 176

Troubleshooting Procedures 4-9
4
Example:
4.5.2 watch-net
,
watch-aui
,
watch-tpe
,
watch-net-all
These tests monitor broadcast Ethernet packets on the Ethernet cable(s)
connected to the system. Good packets received by the system are indicated by
a period (.) displayed on the screen. Errors such as Framing Error and Cyclic
Redundancy Check (CRC) Error are indicated with an X, along with the error
description.
Example:
ok watch-clock
Watching the 'seconds' register of the real time clock chip.
It should be 'ticking' once a second.
Type any key to stop.
41 (this counter increments from 0 to 59)
ok watch-net
Using AUI Ethernet Interface
Lance register test -- succeeded.
Internal loopback test -- succeeded.
External loopback test -- Lost Carrier (transceiver cable
problem?) send failed.
Using TP Ethernet Interface
Lance register test -- succeeded.
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.
...............................................................
...............
...............................................................
...............
.............................Framing error CRC error
X..............