IBM 2498B24 User Guide - Page 48

LED name, LED color, Status of hardware, Recommended, action, portDisable, switchEnable - express manual

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Table 6. Port LED patterns during normal operation LED name LED color Recommended Status of hardware action Port status No light No light or signal Check SFP and cable. carrier (SFP or cable) detected. Steady green Port is online (connected to external device) but has no traffic. No action is required. Slow-flashing green (on 1 second, off 1 second) Port is online but segmented, indicating a loopback cable or incompatible switch. Verify that the correct device is connected to the port and that the switch and port settings are correct. Fast-flashing green (on 1/4 second, off 1/4 second) Port is in internal No action is required. loopback (diagnostic). Flickering green Port is online, with traffic flowing through port. No action is required. Steady amber Port is receiving light No action is required. or signal carrier but is not yet online. Slow-flashing amber (on 1 second, off 1 second) Port is disabled as If all ports are the result of slow-flashing amber, diagnostics or the switch could be portDisable disabled. Enable the command. If all ports port using the are slow-flashing portEnable amber, the switch command; refer to could be disabled. Fabric OS Command Reference Manual for more information. If all ports are slow-flashing amber, enable the switch (switchEnable command). Fast-flashing amber (on 1/4 second, off 1/4 second) Port is faulty. Check the Port Status LEDs, error log, SFP, and cable or loopback plug. Clear the error log. Rerun the diagnostics to verify that the error condition is fixed. 24 SAN24B-4 Express Installation, Service, and User Guide

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Table 6. Port LED patterns during normal operation
LED name
LED color
Status of hardware
Recommended
action
Port status
No light
No light or signal
carrier (SFP or cable)
detected.
Check SFP and cable.
Steady green
Port is online
(connected to
external device) but
has no traffic.
No action is required.
Slow-flashing green
(on 1 second, off 1
second)
Port is online but
segmented,
indicating a loopback
cable or incompatible
switch.
Verify that the correct
device is connected
to the port and that
the switch and port
settings are correct.
Fast-flashing green
(on 1/4 second, off
1/4 second)
Port is in internal
loopback (diagnostic).
No action is required.
Flickering green
Port is online, with
traffic flowing
through port.
No action is required.
Steady amber
Port is receiving light
or signal carrier but
is not yet online.
No action is required.
Slow-flashing amber
(on 1 second, off 1
second)
Port is disabled as
the result of
diagnostics or
portDisable
command. If all ports
are slow-flashing
amber, the switch
could be disabled.
If all ports are
slow-flashing amber,
the switch could be
disabled. Enable the
port using the
portEnable
command; refer to
Fabric OS Command
Reference Manual
for
more information.
If all ports are
slow-flashing amber,
enable the switch
(
switchEnable
command).
Fast-flashing amber
(on 1/4 second, off
1/4 second)
Port is faulty.
Check the Port Status
LEDs, error log, SFP,
and cable or
loopback plug. Clear
the error log. Rerun
the diagnostics to
verify that the error
condition is fixed.
24
SAN24B-4 Express Installation, Service, and User Guide