SNAX/XF and SNAX/APN Event Management Programming Manual

Glossary
SNAX/XF and SNAX/APN Event Management Programming Manual—426859-001
Glossary-14
reset state
reset state. An object state indicating the object has been changed back to its original
configuration.
application by a subsystem in reaction to a DSM command.
response message. An SPI message sent from a subsystem to an application program in
reaction to a command message. A message always contains entire response records
(a single response record cannot be split across multiple messages). If there are multiple
records in a response message, each record is enclosed in a data list.
response record. A set of response tokens, usually describing the results of performing a
command on one object. Every response record in a response from a Compaq subsystem
contains a return token; a response record can also contain error lists that include error
tokens. A response can consist of multiple response records, spread across one or more
response messages. A response record cannot be split between two response messages.
If there are multiple response records in a response message, each response record is
enclosed in a data list. Each response record is required to contain a return token. See
also return token
and data list.
response token. A token returned as an element of a response. Response tokens include
information tokens, syntax tokens, a special response-control token (a context token),
the return token, and error tokens.
return code. A value returned at the completion of a command, indicating whether the
command was successful and, if not, the reason for failure.
return token. The token that indicates whether a command was successful and, if not, why it
failed. The name of the return token is ZSPI-TKN-RETCODE. Its value consists of a
single integer field. See also error token
.
RH. A request or a response unit header.
ring. A network topology in which stations are connected to one another in a closed logical
circle.
RU. Request/response unit.
SCF. See Subsystem Control Facility (SCF)
.
SCP. See Subsystem Control Point (SCP)
.
SDLC. Synchronous data link control.
secondary logical unit (SLU). In SNA and SNAX/XF, one of the two LUs involved in an
LU-LU session. The SLU functions under the control of the remote PLU. It accepts an
incoming BIND request from the PLU.
service manager. The process within the SNAX/XF and SNAX/APN subsystems that
provides configuration and management services to the line handlers. The service
manager also receives all SCF and SPI commands directed to SNAX/XF and