Loop Capable Fabric Port

What Does Loop Capable Fabric Port Mean?

A loop capable fabric port (L_Port) is a basic port in the fiber channel arbitrated loop (FC-AL) topology. It is interconnected to other elements by point-to-point links between ports, switches and individual nodes.

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A L_Port is also known as a loop port.

Techopedia Explains Loop Capable Fabric Port

L_Port does not reference a specific port type but is used for any adjudicated loop port, such as the NL_Port and FL_Port, with conditions. The L_Port is known as an NL_Port if an N_Port operates on the loop. It is also known as an FL_Port if an F_Port operates on a loop.

The FC-AL (also called just FC) is a type of interface mostly used for storage networking. It is designed for high-end systems with multiple hard drives. A single FC bus can support up to 127 devices, which is much more than the small computer system interface (SCSI) that only supports up to 16 devices. The FC is standardized by the International Committee for Information Technology Standards (INCITS) in the T11 (X3T9.3) Technical Committee.

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Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…