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
0R_CTL
1 (MSB)
D_ID2
3(LSB)
400000000
Reserved
5 (MSB)
S_ID6
7(LSB)
800000000
Typ e
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)
Paramet er
21
22
23 (LSB)
Table
number
18