The operational state of the FC port. Possible values:
startup - The port is booting up.
link_not_connected - The port has finished initialization, but a link with the fabric is not established.
online - The port is initialized and a link with the fabric has been established.
link_disconnected - The link was present at one point on this port but is currently not established.
offlined_by_user - The port is administratively disabled.
offlined_by_system - The port is set to offline by the system. This happens when the port encounters too many errors.
node_offline - The state information for the port cannot be retrieved. The node is offline or inaccessible.