Q-Logic 59096-04 Manuel D’Utilisation

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2 – General Description
Fibre Channel Ports
2-6
59096-04  A
S
2.2.1
Port LEDs
Each port has its own Logged-In LED (L) and Activity LED (A) as shown in 
.
Figure 2-5.  Port LEDs
2.2.1.1
Port Logged-In LED (Green)
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 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 is 
extinguished. Refer to 
information about the Logged-In LED.
2.2.1.2
Port Activity LED (Green)
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.
A
L
A
L
A
L
A
L
A
L
A
L
A
L
A
L
A
L
A
6
7
8
9
10
11
13
14
15
16
L
A
17
L
A
L
A
L
A
L
A
12
Logged-In 
LED (Green)
Activity LED 
(Green)
Logged-In 
LED (Green)
Activity LED 
(Green)
1/2/4-Gbps Ports
10-Gbps Ports