Fibre channel topology where two or more ports can interconnect but only two ports can communicate at the same time.

A loop type topology where two or more ports can be interconnected, but only two ports at a time can communicate.

An interconnection scheme which supports up to 126 ports on a loop in a shared medium topology.

Arbitrated loop, also known as FC-AL, is a Fibre Channel topology that requires no fibre channel switches. Devices are connected in a one-way loop fashion in a ring topology.