HP StorageWorks SAN Switch 2/8V, 2/16V, 2/16N and 4/32 Installation Guide (AA-RVULC-TE, January 2005)

Managing SAN switches68
Port LED patterns
Each port has two LEDs: a port speed and a port status indicator. Table 14 shows the LED
location, color, and meaning for these port LEDs.
Table 14 Port LED patterns during normal operation
LED name,
location
LED color Status of hardware Recommended action
Port Status
Below ports on
left
No light No light or signal carrier
(transceiver or cable) detected.
Check transceiver and cable.
Steady green Port is online (connected to
external device) but has no
traffic.
No action 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 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 required.
Flickering green Port is online with traffic
flowing through port.
No action required.
Steady amber Port is receiving light or signal
carrier, but is not yet online.
No action 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.
Enable the port: use the
portEnable command.
If all ports are slow-flashing
amber, enable the switch
(switchEnable command).