Seagate Fibre Channel Interface - Manual (Page 129)

Fibre Channel Interface Manual, Rev. D 115
Port_Identifier
The FC 24-bit address assigned to the port. The lower byte is the current FC-AL AL_PA for this port. If the port does not
have a Port_Identifier, a value of FF FF FFh is returned in the Port_Identifier field.
Port Name
The 64-bit Fibre Channel unique Name_Identifier assigned to the port.
Port Position
The offset value for this port's AL_PA in the FC-AL AL Loop Initialization Loop Position (LILP) Frame. If the port does not
have an AL_PA, a value of FFh is returned in the Port Position field.
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