SNAX/HLS Management Programming Manual

Standard SNAX/HLS Definitions
Common Definitions
104708 Tandem Computers Incorporated 6–41
ZHLS–VAL–FSM–BSM–P–TERM–S
indicates a request carrying EB (end bracket) indicator has been sent, while a
transaction (SNA bracket) is in progress (bracket state INB). The bracket is
terminated (transition to between bracket state, BETB) at the end of the chain,
or if a definite response is requested when that response to the EB chain is
received. If the EB chain is cancelled, the bracket state reverts to INB.
ZFSM–HDX
reports the SNAX/HLS implementation of FSM_HDX. This FSM controls the
send/receive modes for half–duplex data flows. If the BIND request specifies
either half–duplex contention or half–duplex flip–flop, this FSM is used. The
possible values of this field are affected by the use of brackets. See the IBM SNA
Format and Protocol Reference Manual for more information about this FSM.
This field can have the following enumerated values:
ZHLS–VAL–FSM–HDX–CONT
indicates that a user message is not in progress. The right to speak is available
to whichever side wants it, with contention resolved as specified in the
ZCONT–WINNER field of the ZHLS–MAP–INFO–SESS structure.
ZHLS–VAL–FSM–HDX–CONT–RECV
indicates that a user message is being received.
ZHLS–VAL–FSM–HDX–CONT–SEND
indicates that a user message is being sent.
ZHLS–VAL–FSM–HDX–ERP–RECV
indicates that a negative response has been sent or received and that error
recovery is in progress. The session can only receive data; no messages can be
sent.
ZHLS–VAL–FSM–HDX–ERP–SEND
indicates that a negative response has been sent or received and error recovery
is in progress. The session can only send data, and no messages from the
partner can be received.
ZHLS–VAL–FSM–HDX–INB–RECV
indicates that either a user message is being received and the session is in
brackets, or the BIND request specified that the reset state of the session was
this state.