[1] The basic building blocks of an FC connection are the frames.
The frame header is used to control link applications, control device protocol transfers, and detect missing or out of order frames.
A maximum 2048 byte long field (payload) contains the information to be transferred from a source N_Port to a destination N_Port.
The 4 byte Cyclic Redundancy Check (CRC) precedes the End of Frame (EOF) delimiter.
Between successive frames a sequence of (at least) six primitives must be transmitted, sometimes called interframe gap.