9.1.4Fibre Channel port login

Table 9 identifies the required content of the N_Port Login (PLOGI) payload from an initiator.

Table 9:

N_Port login (PLOGI) payload

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bytes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0-15

03

00

00

00

09

09

BB

BB

CF

XX

FS

FS

XX

XX

XX

XX

Common

16-31

XX

XX

XX

XX

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

IC

IC

XX

XX

FS

FS

XX

CS

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.

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.

Cheetah 15K.5 FC Product Manual, Rev. D

49

Page 58 Page 60
Page 59
Image 59
Seagate ST373455FC, ST3146855FC, ST3300655FC manual Fibre Channel port login, NPort login Plogi payload Bytes
Page 58 Page 60

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