Technical Discusssion - Sun Microsystems Ultra 30 Reference Manual

Link Test
Enabled
(Default)
Link Test
Disabled
(Reset)
FIGURE 2-2
2.2

Technical Discusssion

The twisted-pair Ethernet link integrity test determines the state of the twisted-pair
cable link between the host and the hub in a network. Both the host and hub
regularly transmit a link test pulse. When either the host or hub has not received a
Two-way communication
1
Ultra 30
Link Test Ultra 30 may boot
Enabled successfully, but with "lost
(Default) carrier" or "no carrier" error
1 messages.
Ultra 30
Ultra 30 may boot
successfully, but other hosts
in the network cannot
communicate with the
0 Ultra 30.
Ultra 30
Link Test Two-way communication
Disabled
(Reset)
0
Ultra 30
Ensuring Host-Hub Communication in a 10BASE-T Network
Link Test
Enabled
1
Hub
Link Test
Disabled
0
Hub
Link Test
Enabled
1
Hub
Link Test
Disabled
0
Hub
Chapter -3