Port Discovery (Pdisc/Pdisc_Acc) - Fujitsu MAA3182FC Series Manual

1.7.5

Port Discovery (PDISC/PDISC_ACC)

0 1 2 3
Word
<SOF>
Header <R_CTL> <D_ID>
×× ×× ××
0 22
1 Reserve <S_ID>
×× ×× ××
00
2 <TYPE> <F_CTL>
01 29 00 00
3
××
00 00 00
<SEQ_CNT>
<SEQ_ID>
4
×× ××
FF FF
<OX_ID> <RX_ID>
5
00 00 00 00
Payload
0 50 00 00 00
FC-PH T.71
1 FC-PH Ver. BB Credit
FC-PH T.100.
FC-PH F.61
2 Common feature BB Rev. Data
field size
3 Total Conc. RO by Inf.
Sequence category
4 E_D_TOV
N_Port_Name (8 Byte)
~ ~ ~ ~
Node_Name (8 Byte)
~ ~ ~ ~
Class1 Service Parm.
FC-PH F.62 (16 Byte)
~ ~ ~ ~
Class2 Service Parm.
FC-PH F.62 (16 Byte)
~ ~ ~ ~
Class3 Service Parm.
FC-PH F.62 (16 Byte)
~ ~ ~ ~
Reserve (16 Byte)
~ ~ ~ ~
Vendor (16 Byte)
Version Level
~ ~ ~ ~
<CRC>
~ ~ ~ ~
<EOF>
Same payload as ACC of PLOGI /PLOGI
FC-PH F.61: Common Service Parameter
FC-PH F.62: Class3 Service Parameter
1 - 48
0 1 2 3 Byte
<SOF>
<R_CTL> <D_ID>
×× ×× ××
23
Reserve <S_ID>
×× ×× ××
00
<TYPE> <F_CTL>
01 99 00 00
FF 00 00 00
<SEQ_CNT>
<SEQ_ID>
×× ××
FF FF
<OX_ID> <RX_ID>
00 00 00 00
02 00 00 00
FC-PH T.72
FC-PH F.61
Common Service Parm.
(Same as PLOGI)
(1) LS_Command code [PL/W00/B0]
Port_Name (8 Byte)
~ ~ ~ ~
Node_Name (8 Byte)
~ ~ ~ ~
Class1 Service Parm. (16 Byte)
~ ~ ~ ~
Class2 Service Parm. (16 Byte)
~ ~ ~ ~
Class3 Service Parm. (16 Byte)
~ ~ ~ ~
Reserve (16 Byte)
~ ~ ~ ~
Vendor (16 Byte)
Version Level
~ ~ ~ ~
<CRC>
~ ~ ~ ~
<EOF>
C141-E054-02EN
The initiator issues PDISC to the drive to check if
the drive address has changed immediately after
initialization. The
PDISC_ACC when the frame of the received
PDISC is correct.
The payload field of the PDISC/PDISC_ACC
frame is described below. For the header field, refer
to Section 1.7, "Extended Link Service."
Word xx and byte y of the payload are represented
by [PL:Wxx/By].
50h: Indicates PDISC.
02h: Indicates PDISC_ACC.
•
The drive responds with LS_RJT(0Bh,
00h) when this field is an unsupported
Link Service code.
The structures of other parts of the payload are
exactly the same as PLOGI and PLOGI_ACC.
If N_Port_Name or Node_Name of PDISC
received by the drive is different from the
previously logged in value, the drive responds with
LOGO.
The checking method for the payload of PDISC
received by the drive and the response to the
detection of an error in the check are the same as
the case of PDISC.
drive responds with