Nortel Networks 450 manual Diagnosing and Correcting the Problem

				Troubleshooting
Table 4-1.	BayStack 450 Switch LED Descriptions (continued)
Label	Type	Color	State	Meaning
10/100	10/100 Mb/s	Green	On	The corresponding port is set to operate at 100 Mb/s and
	port speed			the link is good.
	indicator
		Green	Blinking	The corresponding port has been disabled by software.
		Amber	On	The corresponding port is set to operate at 10 Mb/s and
				the link is good.
		Amber	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	Blinking	Indicates network activity for the corresponding port. A
		or		high level of network activity can cause the LEDs to
		Amber		appear to be on continuously.

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.

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.

302401-D Rev 00 4-5