Seagate ST9900805SS Savvio 10K.1 FC Product Manual - Page 51

9.1.4 Fibre Channel port login Table 8 identifies the required content of the N_Port Login (PLOGI) payload from an initiator. Table 8: N_Port login (PLOGI) payload Bytes 0-15 16-31 32-35 36-47 48-51 52-63 64-67 68-79 80-83 84-95 96-99 100-111 112-115 03 00 00 00 09 09 BB BB CF XX FS FS XX XX XX XX Common XX XX XX XX PN PN PN PN PN PN PN PN NN NN NN NN 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 SO SO IC IC XX XX FS FS XX CS XX XX Class 3 OS OS XX XX XX XX XX XX XX XX XX XX XX XX XX XX Reserved XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX XX Vendor 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 initiator login. MSB Continuously increasing offset Must = 1 Random relative offset Not checked. Port Login Accept will return a 0-not supported. Valid version level x N_Port/F_Port Must = 0, N_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. 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, and implicit logout occurs and the initiator returns a LS_RJT. NN Node name. The node name is not checked or saved by the drive. SO Service options Class 3 only. MSB Class valid Must = 1 Intermix x Stacked connection req. xx Sequential delivery x Other bits reserved xxx XX IC Initiator control MSB XID reassign xx Proc Assc 10 or 11 causes the login to be rejected. Other values are accepted. Other bits XXX CS Concurrent sequences Must be a value greater than 0. OS Open sequences per exchange Must be a value greater than 0. Savvio FC Product Manual, Rev. D 45