4
Port Operational States
4-35
Monitoring and Managing the Switch
Port Operational States
Table 4-3 describes the port states and the LED indicators and alert 
symbols that appear in the Hardware view and Port List view.
Table 4-3 Port States
Port Indicators
Alert Symbol Port State DescriptionGreen Amber
On Off None On line The attached device has successfully connected to the switch and 
is ready to communicate, or is in the process of communicating with 
other attached devices. As long as the port remains in the online 
state, the green port LED remains illuminated. On the actual port, 
the green LED blinks when there is active Fibre Channel traffic.
On Off Yellow triangle Invalid 
attachment
The reasons for this state appear in the Reason field of the Port 
Properties window.
Segmented 
E_Port
The E_Port is segmented, preventing the two fabrics from joining. 
(This occurs only when two switchs are connected to each other.) 
Display the Port Properties window to view the segmentation 
reason.
On Blinking Yellow triangle Testing 
and/or 
Beaconing
The port is beaconing. When beaconing is enabled, the amber LED 
on the actual port blinks every two seconds to help users find the 
port. Among other reasons, is enabled if the port is executing an 
external loopback test.
Off
Off On Red and yellow 
diamond
Port failure The switch port has failed and requires service. The amber LED for 
the port remains illuminated.
Off Off None Off line The switch port was configured as blocked and is transmitting the 
Fibre Channel OLS to the attached device.
No light No signal (light) is being received on the switch port. This is a 
normal condition when no cable is plugged into the port or when the 
power of the device attached to the other end of the link is off.