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Cheetah 15K.5 FC Product Manual, Rev. F
9.1.9 Fibre Channel fabric accept loginTable 14 lists the required content of the Fabric Login Accept (ACC) payload from the fabric.

Table 14: Fabric Login Accept (ACC) payload

Bytes
0-15 02 00 00 00 09 09 BB BB CF XX FS FS R_ A_ T0 V_ Com mon
16-31 E_ D_ T0 V_ PN PN PN PN PN PN PN PN NN NN NN NN
32-35 NN NN NN NN
36-47 XX XX XX XX XX XX XX XX XX XX XX XX Class 1
48-51 XX XX XX XX
52-63 XX XX XX XX XX XX XX XX XX XX XX XX Class 2
64-67 XX XX XX XX
68-79 SO SO xx xx XX XX FS FS XX xx XX XX Class 3
80-83 OS OS XX XX
84-95 XX XX XX XX XX XX XX XX XX XX XX XX Reserved
96-99 XX XX XX XX
100-111 XX XX XX XX XX XX XX XX XX XX XX XX Vendor -
112-115 XX XX XX XX Version
XIndicates a four-bit (hex) field is not checked.
xIndicates a single bit is not checked.
BB BB-Credit. This field is not checked. The FC-A L drive uses BB-Credit of zero (0).
CF Common features. This binary field selects the common fe atures requested by the fabric login.
MSB Continuously increasing offset x
Random relative offset x
Valid version level x
N_Port/F_Port Must = 1, F_Port
Alternate credit model Must = 1
Other bits reserved xxx XX
FS Receive buffer field size. The FS field in the commo n and Class 3 parameters is checked for the range 128 < FS < 2,112 and a
multiple of four bytes. The receive buffer field size i n the Class 3 parameters is used. The drive uses the lowe r FS of Fabric
Login Accept or N_Port Login when sending frames to an initiator.
PN Port Name. The fabric port name is saved with th e login parameters. If a change of the port name is detecte d during a FAN, an
implicit logout occurs and a LS_RJT is returned to th e fabric.
NN Node Name. The drive does not check or save the n ode name.
SO Service Options—Class 3 only.
MSB Class valid Must = 1
Intermix x
Stacked connection req. xx
Sequential delivery Must = 1
Other bits reserved xxx XX