The format of this object is identical to the format
of Hard Address defined in the Discover Address (ADISC)
Extended Link Service (FC-PH-2).
Hard Address is the 24-bit NL_Port identifier which
consists of
- the 8-bit Domain Id in the most significant byte
- the 8-bit Area Id in the next most significant
byte
- the 8-bit AL-PA(Arbitrated Loop Physical Address)
which an NL_port attempts acquire during FC-AL
initialization in the least significant byte.
If the port is not an NL_Port, or if it is an NL_Port
but does not have a hard address, then all bits are
reported as 0s.