When planning a fabric, consider the number of devices and the anticipated
demand. The number of devices will determine the number of ports that are
needed, and in turn, the number of switches.

Consider the transmission speeds of your adapters and SFPs. The switch ports
0–19 support 1Gbps, 2Gbps, 4Gbps, and 8Gbps transmission speeds depending
on the SFP.

Consider also the distribution of targets and initiators. An F_Port supports a single
device. An FL_Port can support up to 126 devices in an arbitrated loop.

NOTE:

Setting an SFP port to 1Gbps that has an 8Gbps SFP transceiver will bring
down the port.