Seagate ST373207FC Cheetah 10K.7 FC Product Manual - Page 66

9.1.9 Fibre Channel fabric accept login Table 22 lists the required content of the Fabric Login Accept (ACC) payload from the fabric. Table 23: Fabric Login Accept (ACC) payload Bytes 0-15 16-31 02 00 00 00 XX XX BB BB CF XX FS FS R_ A_ T0 V_ Common E_ D_ T0 V_ PN PN PN PN PN PN PN PN NN NN NN NN 32-35 36-47 48-51 52-63 64-67 NN NN NN NN XX XX XX XX XX XX XX XX XX XX XX XX Class 1 XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX Class 2 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 Reserve d 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 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 (0). CF Common features. This binary field selects the common features 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 common and Class 3 parameters is checked for the range 128 < FS < 2,112 and a multiple of four bytes. The receive buffer field size in the Class 3 parameters is used. The drive uses the lower 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 the login parameters. If a change of the port name is detected during a FAN, an implicit logout occurs and a LS_RJT is returned to the fabric. NN Node Name. The drive does not check or save the node 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 54 Cheetah 10K.7 FC Product Manual, Rev. D