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Glossary
OSI/FTAM Responder Manual—425199-001
Glossary-12
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There are no restrictions on the number of levels, on the arc lengths, or on the
number of arcs originating from each node.
The access unit, or subtree, of a node in this model is called a file-access data unit
(FADU). FTAM-2 files have a two-level hierarchy of one root node and many second-
level nodes. FTAM-1 and FTAM-3 files have only a single root FADU. See FADU and
root FADU.
IA5String. The character-string type of strings containing any of the 32 control
characters, 94 displayable characters, the space character, and the delete character, as
defined by CCITT Recommendation T.50. These strings contain format effectors.
indication primitive. A primitive issued when a service user (entity) is to be informed
about an event. This is one of four types of service primitives. See service primitive.
indication procedure. A procedure called to retrieve the indication data after an
indication primitive has been received. See indication primitive.
indirect-process-name. A variable that represents the name of a Compaq initiator or
responder process as it is known to APLMGR. It consists of three parts: $appl-mgr-
name, #proc-type, and internal-name, which are separated by periods (.). An SCF
command that uses this form of process name is sent to the APLMGR process, which
looks up the specified process in its MIB and then routes the command to the process.
Contrast with $process-name.
informative message. An ISO-defined type of diagnostic error code that does not
require recovery and does not affect the current state of the file service. An informative
message provides information to qualify a successful action. See also error type,
permanent error, and transient error.
initiator. The file-service user that requests the establishment of the FTAM regime.
In Compaq FTAM, the initiator is a process that allows FTAM applications on a
Compaq NonStop system to access FTAM protocol and to request services of a
responder on a remote computer system. It operates by establishing an association with
the remote responder over the OSI network. The initiator then sends and receives
FTAM protocol messages to and from the remote responder. The FTAM application
programmatic interface (API) is the application program’s interface to the initiator
process. See also FTAM API; contrast with responder.
initiator-identity parameter. A parameter that identifies the calling user on an FTAM
association. For Compaq FTAM applications, if this parameter is not sent by the
application, no initiator identity is supplied to the remote responder. See calling user.
Inspect. The Compaq interactive symbolic debugger, which enables you to isolate
errors in programs running on Compaq NonStop systems. Inspect features include
interactive control of program execution with breakpoints, distributed debugging across
a network, concurrent debugging of all parts of an application, saving and examining
process states, and local system and personal customization.
interactive interface. A set of rules by which a human operator is allowed to perform
functions at a terminal in response to system prompts. Contrast with programmatic
interface.
intermediate state. See state transition.