Fibre Channel Addressing and Routing Fibre Channel Addressing
In a public loop (connected to a switch) a private device will only use the 8 bit ALPA:
• A public loop is connected to a switched fabric, so ports which login with the Name Server are assigned a full 24 bit fabric address.
• 126 ALPA addresses are available to NL_Ports in the arbitrated loop. • The Domain and Area fields that are identical to those of the FL_Port to which the loop is connected.
239 Domains are available to the fabric: • Domains 01–EF are available • Domains 00 and F0–FF are reserved.