Status-Acknowledge(ACKLUA)

The Status-Acknowledge(ACKLUA) message is for LUA applications only. It flows from the node to the application, and is used with both the SSCP and PLU connections.

struct Status-Acknowledge(ACKLUA) {
    PTRBFHDR  nxtqptr;
    PTRBFELT  hdreptr;
    CHAR      numelts;
    CHAR      msgtype;
    CHAR      srcl;
    CHAR      srcp;
    INTEGER   srci;
    CHAR      destl;
    CHAR      destp;
    INTEGER   desti;
    CHAR      sfhdr.stackhdr.akstat;
    CHAR      sfhdr.stackhdr.akqual;
    INTEGER   sfhdr.stackhdr.akmsgkey;
    CHAR      sfhdr.stackhdr.akflags1;
    CHAR      sfhdr.stackhdr.akflags2;
    INTEGER   sfhdr.stackhdr.aknumb1;
    INTEGER   sfhdr.stackhdr.aknumb2;
    INTEGER   sfhdr.stackhdr.akseqno;
}; 
 

Members

nxtqptr

Pointer to next buffer header.

hdreptr

Pointer to buffer element (NIL).

numelts

Number of buffer elements (0x00).

msgtype

Message type STATFMI (0x21).

srcl

Source locality.

srcp

Source partner.

srci

Source index.

destl

Destination locality.

destp

Destination partner.

desti

Destination index.

sfhdr.stackhdr.akstat

Status type ACK (0x01).

sfhdr.stackhdr.akqual

Acknowledgment type.

sfhdr.stackhdr.akmsgkey

Message key.

sfhdr.stackhdr.akflags1

Application flag 1.

sfhdr.stackhdr.akflags2

Application flag 2.

sfhdr.stackhdr.aknumb1

Number of replies.

sfhdr.stackhdr.aknumb2

Reserved.

sfhdr.stackhdr.akseqno

SNA sequence number.

Remarks

• The message key and application flags are undefined and should not be checked.
• The SNA sequence number gives the sequence number of the inbound data message to which this is an acknowledgment.