Nortel BayStack 450-24T - Diagnosing and Correcting the Problem

Troubleshooting
309978-D Rev 01 4-5
Diagnosing and Correcting the Problem
Before you perform the problem-solving steps in this section, cycle the power to
the BayStack 450 switch (disconnect and then reconnect the AC power cord);
then, verify that the switch follows the normal power-up sequence.
10/100 10/100 Mb/s
port speed
indicator
Green On The corresponding port is set to operate at 100 Mb/s and
the link is good.
Green Blinking The corresponding port has been disabled by software.
Ye l l o w On The corresponding port is set to operate at 10 Mb/s and
the link is good.
Ye l l o w Blinking The corresponding port has been disabled by software.
Off The link connection is bad or there is no connection to
this port.
Link Link status Green On BayStack 450-12F model only: Valid communications link
established.
Off The communications link connection is bad or there is no
connection to this port.
Blinking The corresponding port is management disabled.
F Dx Duplex status Green On BayStack 450-12F model only: The corresponding port is
in full-duplex mode.
Off The corresponding port is in half-duplex mode
Activity Port activity Green
or
Ye l l o w
Blinking Indicates network activity for the corresponding port. A
high level of network activity can cause the LEDs to
appear to be on continuously.
Warning: To avoid bodily injury from hazardous electrical current, never
remove the top cover of the device. There are no user-serviceable components
inside.
Vorsicht: Um Verletzungsgefahr durch einen elektrischen Stromschlag
auszuschließen, nehmen Sie niemals die obere Abdeckung vom Gerät ab. Im
Geräteinnern befinden sich keine Komponenten, die vom Benutzer gewartet
werden können.
Table 4-1. BayStack 450 Switch LED Descriptions (continued)
Label Type Color State Meaning