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A fiber connection (FICON) is a fiber optic channel technology that increases capacity and lowers the cost of enterprise system connection (ESCON). FICON is a proprietary IBM fiber channel (FC), layer-4 protocol with a channel to control unit cabling infrastructure.
FICON is often used with IBM 64-bit mainframe z/Architecture and Geographically Dispersed Parallel Sysplex (GDPS), as well as a number of mainframes supporting fiber channel protocol (FCP) via a small computer system interface (SCSI) command set over fiber channel.
FICON increases input/output (I/O) aptitudes through faster physical link rates and innovative architecture - making it eight times faster ESCON. FICON also supports older technology like ESCON and parallel topology.
FICON's features include: