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A node port (N_Port) is a port on a network node, such as a host or storage device, used in fiber channel (FC) point-to-point or FC switched fabric topologies. There are several types of node ports that are used to connect equipment to FC node fabric.
In FC terminology, a port is any network entity that actively communicates on a network and does not have to be a hardware port. Most ports are located on devices like FC switches, host bus adapters or disk storage.
Other node port types include: