Tandem Logon Manager for IBM Systems (ILOGMGR) Manual

Logical Flows and Internal Formats
Tandem Logon Manager for IBM Systems (ILOGMGR) Manual—127335 B-3
PROGRAM_START_REQ Record
In Figure B-4, the time specified in the request timeout control record has elapsed before
the TLOGMGR could process the request. As a result, the request is aborted, and a
termination message is sent to the terminal with a sense code indicating to the user that
permission has been denied.
Internal Formats
This subsection provides information about how the ILOGMGR communicates with a
TLOGMGR using the following records:
•
PROGRAM_START_REQ (Program Start Request)
•
PROGRAM_START_REPLY (Program Start Reply)
•
PROGRAM_START_ABORT (Program Start Abort)
PROGRAM_START_REQ Record
The PROGRAM_START_REQ is sent from an ILOGMGR to a TLOGMGR to request
that a session be started between a Tandem application, as the PLU, and a terminal or
IBM application, as the SLU. Table B-1 shows the format of the
PROGRAM_START_REQ record.
Figure B-4. Request Timeout Logical Flow
Table B-1. PROGRAM_START_REQ Format (page 1 of 2)
Byte Content
0 through 1 Record length in bytes, but not including this length field
2 Value X'01' (PROGRAM_START_REQ request code)
3 through 5 Unused
6 through 9 VTAM's communication identifier (CID) for this session logon request
10 through 17 PLU name
Logon
Logon Exit
Program Start Request
Program Start Abort
Negative Response
(X'080A0107')
Terminate
With Sense
TLOGMGR ILOGMGR VTAM TERMINAL
011
Request Times Out
APPLICATION