FM Profile 19

FM Profile 19 is supported on PLU-SLU sessions using LU type 6.2. This profile specifies the following session rules:

PLU and SLU use immediate request mode.
PLU and SLU use immediate response mode.
Multiple RU chains are allowed.
PLU and SLU requests indicate definite or exception response.
No compression.
Brackets are used.
FM headers (types 5, 7, and 12 only) are allowed.
Conditional termination for brackets (specified by Conditional End Bracket [CEB]) is used.
PLU and SLU may send CEB.
Normal-flow send/receive mode is half-duplex flip-flop.
Half-duplex flip-flop reset state is SEND for PLU.
Symmetric error responsibility.
Contention winner/loser negotiated at BIND time.
PLU and SLU support the following DFC commands:
- SIGNAL
- LUSTAT
- BIS
- RTR
The following combinations of RQE, RQD, CEB, and CD are allowed on end-chain RUs:
RQE CD CEB

RQD2 CD CEB

RQD3 CD CEB

RQE1 CD CEB

RQD CD CEB

The only option for Profile 19 is contention winner/loser.