IBM AA-RWF3A-TE manual 4/8 and 4/16 SAN Switch port LED patterns

4/8 and 4/16 SAN Switch port LED patterns

Each port includes two LEDs: a Port Speed indicator and a Port Status indicator. Table 11 describes the LED locations, colors, and recommended actions.

Table 11 Port LED patterns during normal operation

LED name	LED color	Hardware status	Recommended action
Port Status	No light	No power or signal	Check SFP and cable.
		carrier (SFP or cable)
		detected.
	Steady green	Port is online	No action required.
		(connected to external
		device) but has no
		traffic.
	Slow flashing	Port is online but	Verify that the correct device is connected
	green (1	segmented, indicating	to the port and that the switch and port
	second on, 1	a loopback cable or	settings are correct.
	second off)	incompatible switch.
	Fast-flashing	Port is in internal	No action required.
	green (1/4	loopback (diagnostic).
	second on, 1/4
	second off)
	Flickering green	Port is online with traffic	No action required.
		flowing through it.
	Steady amber	Port is receiving light or	No action required.
		signal carrier, but is not
		yet online.
	Slow-flashing	Port is disabled as the	Enable the port using the portenable
	amber (1	result of diagnostics	command; see the Fabric OS command
	second on, 1	or portdisable	reference guide for more information.
	second off)	command.	If all ports are slow-flashing amber, enable
		If all ports are	the switch (switchenable command).
		slow-flashing amber,
		the switch may be
		disabled.
	Fast-flashing	Port is faulty.	Check the Port Status LEDs, error log, SFP,
	amber (1/4		and cable or loopback plug.
	second on, 1/4		Clear the error log.
	second off)		Rerun the diagnostics to verify that the error
			condition is fixed.
	Alternating	Port is bypassed.	Check configuration of FC loop.
	green and
	amber

72 Managing SAN Switches