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Cisco SFS 3012R Multifabric Server Switch Hardware Installation Guide
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Chapter5 Cisco SFS 3012R Server Switch LEDs
Fibre Channel LEDs
Fibre Channel Port LEDs
Fibre Channel Port LEDs are adjacent to each Fibre Channel port. They indicate port status and activity.
Each port has a one bi-color, green/yellow, LED to indicate port status. When you enable a Fibre Channe l
interface module, and a Fibre Channel device is already connected, the run light (LED) of the Fibre
Channel interface port changes from yellow to green, indicating that a connection has been established
between the Fibre Channel device and the port.
Table 5 -12 explains the Fibre Channel port status LED.
Table 5 -13 explains the Fibre Channel port activity LED.
Table5-12 Interpreting the Fibre Channel Port Status LEDs
LED State Indication
Off Optic module or cable is not attached.
Solid yellow A cable is attached, but the port is offline.
Slow pulsing yellow (2
second intervals)
Fiber installed and port is disabled as the result of diagnostics or port access
is denied through CLI or Element Manager.
Fast pulsing yellow
(half-second intervals)
Signal detected but port fault is also detected.
Solid green The port is online, and a signal is detected.
Slow pulsing green (2
second intervals)
The port is online with a loop-back cable attached or an incompatible device.
Fast pulsing green
(half-second intervals)
The port is online but running some internal diagnostics.
Sporadic flickering
green
The port is online, and packet traffic is detected.
Table5-13 Interpreting the Fibre Channel Port Activity LEDs
LED State Indication
Off 1 Gbps
Solid green 2 Gbps