Bay Technical Associates 350 Manual De Usuario
Troubleshooting
893-00992-B
4-5
Port Connection Problems
Port connection problems can usually be traced to a poor cable connection or an
improper connection of the port cables at either end of the link. These types of
problems can be remedied by making sure that the cable connections are secure
and that the cables are connected to the correct ports at both ends of the link.
improper connection of the port cables at either end of the link. These types of
problems can be remedied by making sure that the cable connections are secure
and that the cables are connected to the correct ports at both ends of the link.
Other problems can be traced to the port interface or the autonegotiation mode.
Port Interface
Ensure that the devices are connected using the appropriate crossover or
straight-through cable (see Appendix B, “Connectors and Pin Assignments”).
straight-through cable (see Appendix B, “Connectors and Pin Assignments”).
Autonegotiation Modes
Port connection problems can occur when a port is connected to a station that is
not operating in a compatible mode (for example, connecting a full-duplex port to
a half-duplex port). The BayStack 350 switch negotiates port speeds according to
the IEEE 802.3u autonegotiating standard. The switch adjusts (autonegotiates) its
port speed and duplex mode to match the best service provided by the connected
station, up to 100 Mb/s in full-duplex mode.
not operating in a compatible mode (for example, connecting a full-duplex port to
a half-duplex port). The BayStack 350 switch negotiates port speeds according to
the IEEE 802.3u autonegotiating standard. The switch adjusts (autonegotiates) its
port speed and duplex mode to match the best service provided by the connected
station, up to 100 Mb/s in full-duplex mode.
•
If the connected station uses a form of autonegotiation that is not compatible
with the IEEE 802.3u autonegotiating standard, the connected stations cannot
negotiate a compatible mode for correct operation.
with the IEEE 802.3u autonegotiating standard, the connected stations cannot
negotiate a compatible mode for correct operation.
Diagnostics LED is off.
A fatal error was detected by
the self-test.
the self-test.
Cycle the power to the switch (disconnect and
then reconnect the AC power cord).
then reconnect the AC power cord).
If the problem persists, replace the switch.
Diagnostics LED is
blinking.
blinking.
A nonfatal error occurred
during the self-test.
during the self-test.
Cycle the power to the switch (disconnect and
then reconnect the AC power cord).
then reconnect the AC power cord).
If the problem persists, contact the Bay Networks
Technical Solutions Center.
Technical Solutions Center.
Table 4-2.
Corrective actions
Symptom
Probable Cause
Corrective Action
350fbk.book Page 5 Wednesday, July 9, 1997 4:51 PM