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4
4-10
The Sun Ultra 1 Series has two types of on-board Ethernet interfaces:
10 BASE-T (also called twisted-pair Ethernet or TPE) and 10 BASE5 (also called
thick ethernet or AUI). Only one Ethernet cable is connected to the back of the
system. The system automatically selects 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.
Typing watch-net activates this automatic selection. You may also control the
selection of Ethernet interfaces to monitor by using specific commands. Use
watch-tpe to monitor the 10 BASE-T (Twisted-Pair Ethernet) connection or
watch-aui to monitor the 10 BASE5 (thicknet) connection. Example:
ok watch-tpe
Using TP Ethernet Interface
Lance register test -- succeeded.
Internal loopback test -- succeeded.
External loopback test -- succeeded.
Looking for Ethernet packets.
'.' is a good 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's SBus slots, watch-net-all will start by
monitoring that card's Ethernet transmissions. 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.
Sun Ultra 1 Series Service Manual—November 1995
'X' is a bad packet.
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