What does the D_ID 101213 mean?

A.
10 = Domain ID
12 = ALPA addres
13 =Port ID

B.
10 = Domain ID
12 = Port ID
13 = ALPA addres

C.
10 = Port ID
12 = Domain ID
13 = ALAP addres

D.
10 = = ALPA addres
12 = Port ID
13 = Domain ID