Technical data

3-4 Brocade SilkWorm 4100 Hardware Reference Manual
Publication Number: 53-0000563-02
Interpreting LED Activity
3
LEDs on the Nonport Side of the Switch
The nonport side of the switch has the following LEDs:
• One power supply LED next to the AC power switch on each power supply
• One fan status LED at the top of each fan assembly (inside the bezel)
Figure 3-2 shows the nonport side of the switch.
Port Status No light No signal or light carrier (media
or cable) detected.
Check transceiver and cable.
Slow flashing
green (flashing
in two-second
intervals)
Port is online but segmented
because of a lookback cable or
incompatible switch connection.
No action required.
Fast flashing
green (flashing
in half-second
intervals)
Port is online and an internal
loopback diagnostic test is
running.
No action required.
Flickering green
(steady with
random flashes)
Port is online and frames are
flowing through the port.
No action required.
Steady green Port is online (connected to
external device) but has no
traffic.
No action required.
Slow flashing
amber (flashing
in two-second
intervals)
Port is disabled (because of
diagnostics or the portDisable
command).
Verify that the diagnostic tests
are not running. Reenable the
port using the portEnable
command.
Fast flashing
amber (flashing
in half-second
intervals)
Port is faulty. Check the management interface
and the error log for details on
the cause of status.
Contact Technical Support if
required.
Steady amber
(for more than
five seconds)
Port is receiving light or signal
carrier at 4 Gbit/sec; but is not
yet online.
No action required.
Table 3-1 Port Side LED Patterns During Normal Operation (Continued)
LED Name LED Color Status of Hardware Recommended Action