Q-Logic 2-8C Manuel D’Utilisation

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2 – General Description
Fibre Channel Ports
59042-06 A
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2.2.1
Port LEDs
Each Fibre Channel port has its own Logged-In LED and Activity LED as shown in 
.
Figure 2-5.  Port LEDs
2.2.1.1
Port Logged-In LED
The Logged-in LED indicates the logged-in or initialization status of the connected 
devices. After successful completion of the POST, the switch extinguishes all 
Logged-In LEDs. Following a successful loop initialization or port login, the switch 
illuminates the corresponding logged-in LED. This shows that the port is properly 
connected and able to communicate with its attached devices. The Logged-In 
LED remains illuminated as long as the port is initialized or logged in. If the port 
connection is broken or an error occurs that disables the port, the Logged-In LED 
will flash. Refer to 
 for more information 
about the Logged-In LED.
2.2.1.2
Port Activity LED
The Activity LED indicates that data is passing through the port. Each frame that 
the port transmits or receives causes this LED to illuminate for 50 milliseconds. 
This makes it possible to observe the transmission of a single frame. When 
extending credits, the Activity LED for a donor port will reflect the traffic of the 
recipient port. Refer to 
 for more information about 
extended credits and donor ports.
Logged-In 
LED (Green)
Activity LED 
(Green)