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52 Fibre Channel Interface Manual, Rev. D
9.1 Basic link services
The drive supports the Abort Sequence (ABTS) and two basic services replies, Basic Accept (BA_ACC) and
Basic Reject (BA_RJT). All other basic link services are discarded by the drive. Basic link service functions are
identified by the R_CTL field of the header.
Field definitions (listed alphabetically)
D_ID (Destination Identifier)
The address of the drive for ABTS. This value must match the current address of the drive. For the basic link service
replies, the D_ID is the address of the initiator.
Table 18: Basic link services header
Bit
Byte
76543210
0
R_CTL
1 (MSB)
D_ID2
3 (LSB)
400000000
Reserved
5 (MSB)
S_ID6
7 (LSB)
800000000
Type
9 (MSB)
F_CTL10
11 (LSB)
12
SEQ_ID
1300000000
DF_CTL
14 (MSB)
SEQ_CNT
15 (LSB)
16 (MSB)
OX_ID
17 (LSB)
1811111111
1911111111
RX_ID
20 (MSB)
Parameter
21
22
23 (LSB)
Table
number
18