Figure 3-8 Structure Of Loop Initialization Frame - Hitachi DK32EJ - Ultrastar Series 36.9 GB Hard Drive Reference Manual

Start_Of_Frame delimeter (4bytes)
SOFil
Frame_Header (24bytes)
22xxxxxxxx
(FL_Port xxxxxxxx = 00000000, NL_Port xxxxxxxx = 000000EF)
Payload(12,20, or 132bytes)
LI_ID
and
LI_FL
LI_ID and LI_FL
1101 0000 ... LISM
1102 0000 ... LIFA
1103 0000 ... LIPA
1104 0000 ... LIHA
1105 0000 ... LISA
1105 0100 ... LISA(LIRP and LIFP supported)
1106 0000 ... LIRP
1107 0000 ... LILP
Cyclic Redundancy Check (4bytes)
CRC
End_Of_Frame delimeter (4bytes)
EOFt
There are three primary steps involved in loop initialization.
(1) Loop Initialization Select Master Procedure
(2) AL_PA Assignment
(3) Building a Positional Map of the Loop
The flowchart-like view of the Loop Initialization procedure is shown in Figure 3-9.
3 FIBRE CHANNEL INTERFACE
00xxxxxx 01380000
8-byte Port_Name
16-byte AL_PA bit map
128-byte AL_PA position map(1-byte offset followed by up to 127 AL_PAs)

Figure 3-8 Structure of Loop Initialization frame

OEM MANUAL:K6602771
00000000 FFFFFFFF
Revision: 2 / Date: 2002.12.19
00000000
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