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9.2
Extended link services
The type of extended link service is identified by the LS Command Code in the first word of the payload. The
R_CTL field of the frame header identifies whether the extended link service is a request or a reply to a
request. The accept for extended link services varies with the function. A description of the accept for each
request is included with the description of the request.
Table 21:
Extended link services header
Bit
7
Byte
0
0
1
(MSB)
2
3
4
0
5
(MSB)
6
7
8
0
9
(MSB)
10
11
SEQ_ID
12
13
0
14
(MSB)
15
16
(MSB)
17
18
1
19
1
20
(MSB)
21
22
23
56
6
5
0
1
0
0
0
0
0
0
1
1
1
1
4
3
0
0
R_CTL
D_ID
0
0
Reserved
S_ID
0
0
Type
F_CTL
0
0
DF_CTL
SEQ_CNT
OX_ID
1
1
1
1
RX_ID
Parameter
Fibre Channel Interface Manual, Rev. D
2
1
0
1
(LSB)
0
0
(LSB)
0
0
(LSB)
0
0
(LSB)
(LSB)
1
1
1
1
(LSB)
0
X
0
1
0
1
1
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