EXFO FTB-8500 Series for FTB-500 - Manual (Page 247)

Stream Generation Tabs
Ethernet and Fibre Channel Application 233
Frame Configuration (Fibre Channel)

F_CTL: The Frame Control contains control information related to the
frame content. The default setting is hexadecimal 380000. Possible
values are:
Bit Field Description
23 Exchange Context 0 = Originator of Exchange
1 = Responder of Exchange
22 Sequence Context 0 = Sequence Initiator
1 = Sequence Recipient
21 First Sequence 0 = Sequence other than first of Exchange
1 = First Sequence of Exchange
20 Last_Sequence 0 = Sequence other than last of Exchange
1 = Last Sequence of Exchange
19 End_Sequence 0 = Data frame other than last of Sequence
1 = Last frame of Sequence
18 End_Connection
(Class 1 or 6) or
Deactivate Class 4
circuit
0 = Connection active
1 = End of connection pending (Class 1 or 6) or End of live
Class 4 circuit
17 CS_CTL/Priority
Enable
0 = Word 1, Bits 31-24 = CS_CTL
1 = Word 1, Bits 31-24 = Priority
16 Sequence Initiative 0 = Hold Sequence initiative
1 = Transfer Sequence initiative
15 X_ID reassigned Obsolete
14 Invalidate X_ID Obsolete
13
12
ACK_Form 00 = No assistance provided
01 = Ack_1 Required
10 = Reserved
11 = Ack_0 Required
11 Data Compression Obsolete
10 Data Encryption Obsolete