Seagate ST34501FC Cheetah 4LP Product Manual page 42

32
Table 5: N_Port login (PLOGI) payload
Bytes
0-15 03 00 00
16-31 XX XX XX
32-35 NN NN NN
36-47
48-51 XX XX XX
52-63
64-67 XX XX XX
68-79
80-83 OS OS XX
84-95
96-99 XX XX XX
100-111
112-115 XX XX XX
X Indicates a four bit (hex) field is not checked.
x Indicates a single bit is not checked.
BB BB-Credit. This field is not checked. The FC-AL drive uses BB-Credit of zero.
CF Common features. This binary field selects the common features requested by the initiator login.
MSB Continuously increasing offset
Random relative offset
Valid version level
N_Port/F_Port
Alternate credit model
Other bits reserved
Receive buffer field size. The FS field in the common and Class 3 parameters is checked for the range 128< FS <
FS
2112 and a multiple of four bytes. For multiple frame sequences, all frames but the last frame of the sequence must
be this size. Only the receive buffer field size in the Class 3 parameters is used.
PN Port name (initiator's)—saved with the login parameters. If a change of the port name/AL_PA address association
is detected during a Port DISCovery, an implicit logout occurs and a LS_RJT is returned to the initiator.
NN Node name. The node name is not checked or saved by the drive.
SO Service options Class 3 only
MSB Class valid
Intermix
Stacked connection required
Sequential delivery
Other bits reserved
IC Initiator control
MSB XID reassign
Proc Assc
ACK_0
ACK_N
CS Concurrent sequences
OS Open sequences per exchange
00 09 09 BB BB
XX PN PN PN PN
NN
XX XX XX XX
XX
XX XX XX XX
XX
SO SO IC IC
XX
XX XX XX XX
XX
XX XX XX XX
XX
Must = 1
Not checked. Port Login Accept will return a 0—not supported.
x
Must = 0, N_Port
Must = 1
XXX
Must = 1
x
xx
x
xxx
xx
10 or 11 causes the login to be rejected. Other values are accepted.
xx
xx
Must be a value greater than 0.
Must be a value greater than 0.
Cheetah 4LP FC Product Manual, Rev. A
CF XX FS FS XX
PN PN PN PN NN
XX XX XX XX XX
XX XX XX XX XX
XX XX FS FS XX
XX XX XX XX XX
XX XX XX XX XX
XX XX XX Common
NN NN NN
XX XX XX Class 1
XX XX XX Class 2
CS XX XX Class 3
XX XX XX Reserved
XX XX XX Vendor
Version